64399353 has 16 divisors (see below), whose sum is σ = 87975936. Its totient is φ = 41883920.

The previous prime is 64399331. The next prime is 64399381. The reversal of 64399353 is 35399346.

It is a cyclic number.

It is not a de Polignac number, because 64399353 - 2¹² = 64395257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64399253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61948 + ... + 62978.

It is an arithmetic number, because the mean of its divisors is an integer number (5498496).

Almost surely, 2^64399353 is an apocalyptic number.

It is an amenable number.

64399353 is a deficient number, since it is larger than the sum of its proper divisors (23576583).

64399353 is a wasteful number, since it uses less digits than its factorization.

64399353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524.

The product of its digits is 262440, while the sum is 42.

The square root of 64399353 is about 8024.9207472722. The cubic root of 64399353 is about 400.8302608915.

The spelling of 64399353 in words is "sixty-four million, three hundred ninety-nine thousand, three hundred fifty-three".