64704477 has 8 divisors (see below), whose sum is σ = 88108416. Its totient is φ = 42218432.

The previous prime is 64704457. The next prime is 64704487. The reversal of 64704477 is 77440746.

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

It is a cyclic number.

It is not a de Polignac number, because 64704477 - 2⁶ = 64704413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64704407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229308 + ... + 229589.

It is an arithmetic number, because the mean of its divisors is an integer number (11013552).

Almost surely, 2^64704477 is an apocalyptic number.

It is an amenable number.

64704477 is a deficient number, since it is larger than the sum of its proper divisors (23403939).

64704477 is a wasteful number, since it uses less digits than its factorization.

64704477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458947.

The product of its (nonzero) digits is 131712, while the sum is 39.

The square root of 64704477 is about 8043.9093107767. The cubic root of 64704477 is about 401.4623080402.

The spelling of 64704477 in words is "sixty-four million, seven hundred four thousand, four hundred seventy-seven".