64764562 has 4 divisors (see below), whose sum is σ = 97146846. Its totient is φ = 32382280.

The previous prime is 64764529. The next prime is 64764563. The reversal of 64764562 is 26546746.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56115081 + 8649481 = 7491^2 + 2941^2 .

It is not an unprimeable number, because it can be changed into a prime (64764563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16191139 + ... + 16191142.

Almost surely, 2^64764562 is an apocalyptic number.

64764562 is a deficient number, since it is larger than the sum of its proper divisors (32382284).

64764562 is a wasteful number, since it uses less digits than its factorization.

64764562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32382283.

The product of its digits is 241920, while the sum is 40.

The square root of 64764562 is about 8047.6432575009. The cubic root of 64764562 is about 401.5865364356.

The spelling of 64764562 in words is "sixty-four million, seven hundred sixty-four thousand, five hundred sixty-two".