64906479 has 48 divisors (see below), whose sum is σ = 106529280. Its totient is φ = 37739520.

The previous prime is 64906447. The next prime is 64906481. The reversal of 64906479 is 97460946.

It is not a de Polignac number, because 64906479 - 2⁵ = 64906447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64906979) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 336207 + ... + 336399.

It is an arithmetic number, because the mean of its divisors is an integer number (2219360).

Almost surely, 2^64906479 is an apocalyptic number.

64906479 is a deficient number, since it is larger than the sum of its proper divisors (41622801).

64906479 is a wasteful number, since it uses less digits than its factorization.

64906479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 64906479 is about 8056.4557343785. The cubic root of 64906479 is about 401.8796513582.

The spelling of 64906479 in words is "sixty-four million, nine hundred six thousand, four hundred seventy-nine".