64764087 has 8 divisors (see below), whose sum is σ = 87242736. Its totient is φ = 42730752.

The previous prime is 64764043. The next prime is 64764137. The reversal of 64764087 is 78046746.

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

It is not a de Polignac number, because 64764087 - 2¹⁰ = 64763063 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64764017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110988 + ... + 111569.

It is an arithmetic number, because the mean of its divisors is an integer number (10905342).

Almost surely, 2^64764087 is an apocalyptic number.

64764087 is a deficient number, since it is larger than the sum of its proper divisors (22478649).

64764087 is a wasteful number, since it uses less digits than its factorization.

64764087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222657.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 64764087 is about 8047.6137457013. The cubic root of 64764087 is about 401.5855546535.

The spelling of 64764087 in words is "sixty-four million, seven hundred sixty-four thousand, eighty-seven".