64399948 has 6 divisors (see below), whose sum is σ = 112699916. Its totient is φ = 32199972.

The previous prime is 64399921. The next prime is 64399963. The reversal of 64399948 is 84999346.

It is a junction number, because it is equal to n+sod(n) for n = 64399895 and 64399904.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8049990 + ... + 8049997.

Almost surely, 2^64399948 is an apocalyptic number.

It is an amenable number.

64399948 is a deficient number, since it is larger than the sum of its proper divisors (48299968).

64399948 is a wasteful number, since it uses less digits than its factorization.

64399948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16099991 (or 16099989 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 52.

The square root of 64399948 is about 8024.9578192038. The cubic root of 64399948 is about 400.8314953411.

The spelling of 64399948 in words is "sixty-four million, three hundred ninety-nine thousand, nine hundred forty-eight".