71493650 has 24 divisors (see below), whose sum is σ = 133585200. Its totient is φ = 28466960.

The previous prime is 71493629. The next prime is 71493659. The reversal of 71493650 is 5639417.

It is a super-2 number, since 2×71493650² = 10222683980645000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71493650.

It is not an unprimeable number, because it can be changed into a prime (71493659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8201 + ... + 14499.

It is an arithmetic number, because the mean of its divisors is an integer number (5566050).

Almost surely, 2^71493650 is an apocalyptic number.

71493650 is a deficient number, since it is larger than the sum of its proper divisors (62091550).

71493650 is a wasteful number, since it uses less digits than its factorization.

71493650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6538 (or 6533 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 71493650 is about 8455.3917709353. The cubic root of 71493650 is about 415.0392375926.

The spelling of 71493650 in words is "seventy-one million, four hundred ninety-three thousand, six hundred fifty".