64348839 has 48 divisors (see below), whose sum is σ = 103168000. Its totient is φ = 38491200.

The previous prime is 64348829. The next prime is 64348847. The reversal of 64348839 is 93884346.

It is not a de Polignac number, because 64348839 - 2⁹ = 64348327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64348794 and 64348803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64348829) 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, 323262 + ... + 323460.

Almost surely, 2^64348839 is an apocalyptic number.

64348839 is a deficient number, since it is larger than the sum of its proper divisors (38819161).

64348839 is a wasteful number, since it uses less digits than its factorization.

64348839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 313 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 64348839 is about 8021.7728090491. The cubic root of 64348839 is about 400.7254314942.

The spelling of 64348839 in words is "sixty-four million, three hundred forty-eight thousand, eight hundred thirty-nine".