71973336 has 32 divisors (see below), whose sum is σ = 181621440. Its totient is φ = 23766048.

The previous prime is 71973299. The next prime is 71973437. The reversal of 71973336 is 63337917.

It is a super-2 number, since 2×71973336² = 10360322189937792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71973294 and 71973303.

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, 11446 + ... + 16581.

It is an arithmetic number, because the mean of its divisors is an integer number (5675670).

Almost surely, 2^71973336 is an apocalyptic number.

It is an amenable number.

71973336 is an abundant number, since it is smaller than the sum of its proper divisors (109648104).

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

71973336 is a wasteful number, since it uses less digits than its factorization.

71973336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28143 (or 28139 counting only the distinct ones).

The product of its digits is 71442, while the sum is 39.

The square root of 71973336 is about 8483.7100374777. The cubic root of 71973336 is about 415.9654033112.

The spelling of 71973336 in words is "seventy-one million, nine hundred seventy-three thousand, three hundred thirty-six".