71246885 has 4 divisors (see below), whose sum is σ = 85496268. Its totient is φ = 56997504.

The previous prime is 71246863. The next prime is 71246933. The reversal of 71246885 is 58864217.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17986081 + 53260804 = 4241^2 + 7298^2 .

It is a cyclic number.

It is not a de Polignac number, because 71246885 - 2⁶ = 71246821 is a prime.

It is a super-2 number, since 2×71246885² = 10152237244406450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7124684 + ... + 7124693.

It is an arithmetic number, because the mean of its divisors is an integer number (21374067).

Almost surely, 2^71246885 is an apocalyptic number.

It is an amenable number.

71246885 is a deficient number, since it is larger than the sum of its proper divisors (14249383).

71246885 is a wasteful number, since it uses less digits than its factorization.

71246885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14249382.

The product of its digits is 107520, while the sum is 41.

The square root of 71246885 is about 8440.7869893749. The cubic root of 71246885 is about 414.5611754752.

The spelling of 71246885 in words is "seventy-one million, two hundred forty-six thousand, eight hundred eighty-five".