71497036 has 48 divisors (see below), whose sum is σ = 147329280. Its totient is φ = 30044160.

The previous prime is 71497031. The next prime is 71497039. The reversal of 71497036 is 63079417.

It is a super-2 number, since 2×71497036² = 10223652313570592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 71496986 and 71497004.

It is not an unprimeable number, because it can be changed into a prime (71497031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26100 + ... + 28708.

It is an arithmetic number, because the mean of its divisors is an integer number (3069360).

Almost surely, 2^71497036 is an apocalyptic number.

It is an amenable number.

71497036 is an abundant number, since it is smaller than the sum of its proper divisors (75832244).

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

71497036 is a wasteful number, since it uses less digits than its factorization.

71497036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674 (or 2672 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 71497036 is about 8455.5919958333. The cubic root of 71497036 is about 415.0457896928.

The spelling of 71497036 in words is "seventy-one million, four hundred ninety-seven thousand, thirty-six".