71415764 has 12 divisors (see below), whose sum is σ = 142831584. Its totient is φ = 30606744.

The previous prime is 71415761. The next prime is 71415767. The reversal of 71415764 is 46751417.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71415761) and next prime (71415767).

71415764 is an admirable number.

It is a super-2 number, since 2×71415764² = 10200422695407392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71415761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1275254 + ... + 1275309.

It is an arithmetic number, because the mean of its divisors is an integer number (11902632).

Almost surely, 2^71415764 is an apocalyptic number.

It is an amenable number.

71415764 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71415764 is a wasteful number, since it uses less digits than its factorization.

71415764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550574 (or 2550572 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 71415764 is about 8450.7848156251. The cubic root of 71415764 is about 414.8884666647. Note that the first 3 decimals are identical.

The spelling of 71415764 in words is "seventy-one million, four hundred fifteen thousand, seven hundred sixty-four".