65715490 has 32 divisors (see below), whose sum is σ = 125363520. Its totient is φ = 24732864.

The previous prime is 65715469. The next prime is 65715493. The reversal of 65715490 is 9451756.

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

It is not an unprimeable number, because it can be changed into a prime (65715493) 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, 28729 + ... + 30931.

It is an arithmetic number, because the mean of its divisors is an integer number (3917610).

Almost surely, 2^65715490 is an apocalyptic number.

65715490 is a deficient number, since it is larger than the sum of its proper divisors (59648030).

65715490 is a wasteful number, since it uses less digits than its factorization.

65715490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 65715490 is about 8106.5091130523. The cubic root of 65715490 is about 403.5424721140.

The spelling of 65715490 in words is "sixty-five million, seven hundred fifteen thousand, four hundred ninety".