64757090 has 16 divisors (see below), whose sum is σ = 118039680. Its totient is φ = 25574640.

The previous prime is 64757083. The next prime is 64757101. The reversal of 64757090 is 9075746.

It is a Curzon 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, 40196 + ... + 41775.

It is an arithmetic number, because the mean of its divisors is an integer number (7377480).

Almost surely, 2^64757090 is an apocalyptic number.

64757090 is a deficient number, since it is larger than the sum of its proper divisors (53282590).

64757090 is a wasteful number, since it uses less digits than its factorization.

64757090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82057.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 64757090 is about 8047.1790088204. The cubic root of 64757090 is about 401.5710919296.

The spelling of 64757090 in words is "sixty-four million, seven hundred fifty-seven thousand, ninety".