71213976 has 48 divisors (see below), whose sum is σ = 203026200. Its totient is φ = 22488192.

The previous prime is 71213959. The next prime is 71213981. The reversal of 71213976 is 67931217.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 71213976.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 24661 + ... + 27396.

Almost surely, 2^71213976 is an apocalyptic number.

71213976 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

71213976 is an abundant number, since it is smaller than the sum of its proper divisors (131812224).

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

71213976 is a wasteful number, since it uses less digits than its factorization.

71213976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52088 (or 52081 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 71213976 is about 8438.8373606795. The cubic root of 71213976 is about 414.4973369190.

The spelling of 71213976 in words is "seventy-one million, two hundred thirteen thousand, nine hundred seventy-six".