64757345 has 8 divisors (see below), whose sum is σ = 77754600. Its totient is φ = 51775360.

The previous prime is 64757333. The next prime is 64757359. The reversal of 64757345 is 54375746.

It can be written as a sum of positive squares in 4 ways, for example, as 8567329 + 56190016 = 2927^2 + 7496^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64757345 - 2⁶ = 64757281 is a prime.

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, 10205 + ... + 15285.

It is an arithmetic number, because the mean of its divisors is an integer number (9719325).

Almost surely, 2^64757345 is an apocalyptic number.

It is an amenable number.

64757345 is a deficient number, since it is larger than the sum of its proper divisors (12997255).

64757345 is a wasteful number, since it uses less digits than its factorization.

64757345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7635.

The product of its digits is 352800, while the sum is 41.

The square root of 64757345 is about 8047.1948528664. The cubic root of 64757345 is about 401.5716190301.

The spelling of 64757345 in words is "sixty-four million, seven hundred fifty-seven thousand, three hundred forty-five".