64947804 has 24 divisors (see below), whose sum is σ = 151683840. Its totient is φ = 21629424.

The previous prime is 64947797. The next prime is 64947847. The reversal of 64947804 is 40874946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17757 + ... + 21099.

It is an arithmetic number, because the mean of its divisors is an integer number (6320160).

Almost surely, 2^64947804 is an apocalyptic number.

It is an amenable number.

64947804 is an abundant number, since it is smaller than the sum of its proper divisors (86736036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64947804 is a wasteful number, since it uses less digits than its factorization.

64947804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4969 (or 4967 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 64947804 is about 8059.0200396822. The cubic root of 64947804 is about 401.9649235502.

The spelling of 64947804 in words is "sixty-four million, nine hundred forty-seven thousand, eight hundred four".