71036920 has 32 divisors (see below), whose sum is σ = 162090720. Its totient is φ = 28013440.

The previous prime is 71036899. The next prime is 71036941. The reversal of 71036920 is 2963017.

It is an interprime number because it is at equal distance from previous prime (71036899) and next prime (71036941).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9667 + ... + 15346.

It is an arithmetic number, because the mean of its divisors is an integer number (5065335).

Almost surely, 2^71036920 is an apocalyptic number.

It is an amenable number.

71036920 is an abundant number, since it is smaller than the sum of its proper divisors (91053800).

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

71036920 is a wasteful number, since it uses less digits than its factorization.

71036920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25095 (or 25091 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 71036920 is about 8428.3402873875. The cubic root of 71036920 is about 414.1535366793.

Adding to 71036920 its reverse (2963017), we get a palindrome (73999937).

The spelling of 71036920 in words is "seventy-one million, thirty-six thousand, nine hundred twenty".