64733057 has 4 divisors (see below), whose sum is σ = 68140080. Its totient is φ = 61326036.

The previous prime is 64733027. The next prime is 64733069. The reversal of 64733057 is 75033746.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64733057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64733027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1703483 + ... + 1703520.

It is an arithmetic number, because the mean of its divisors is an integer number (17035020).

Almost surely, 2^64733057 is an apocalyptic number.

It is an amenable number.

64733057 is a deficient number, since it is larger than the sum of its proper divisors (3407023).

64733057 is a wasteful number, since it uses less digits than its factorization.

64733057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407022.

The product of its (nonzero) digits is 52920, while the sum is 35.

The square root of 64733057 is about 8045.6856140419. The cubic root of 64733057 is about 401.5214080407.

The spelling of 64733057 in words is "sixty-four million, seven hundred thirty-three thousand, fifty-seven".