64810479 has 4 divisors (see below), whose sum is σ = 86413976. Its totient is φ = 43206984.

The previous prime is 64810469. The next prime is 64810483. The reversal of 64810479 is 97401846.

It is a happy number.

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

It is not a de Polignac number, because 64810479 - 2¹² = 64806383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64810469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10801744 + ... + 10801749.

It is an arithmetic number, because the mean of its divisors is an integer number (21603494).

Almost surely, 2^64810479 is an apocalyptic number.

64810479 is a deficient number, since it is larger than the sum of its proper divisors (21603497).

64810479 is a wasteful number, since it uses less digits than its factorization.

64810479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21603496.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 64810479 is about 8050.4955748078. The cubic root of 64810479 is about 401.6814200795.

The spelling of 64810479 in words is "sixty-four million, eight hundred ten thousand, four hundred seventy-nine".