396447704 has 8 divisors (see below), whose sum is σ = 743339460. Its totient is φ = 198223848.

The previous prime is 396447697. The next prime is 396447761. The reversal of 396447704 is 407744693.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24777974 + ... + 24777989.

Almost surely, 2^396447704 is an apocalyptic number.

It is an amenable number.

396447704 is a deficient number, since it is larger than the sum of its proper divisors (346891756).

396447704 is a wasteful number, since it uses less digits than its factorization.

396447704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49555969 (or 49555965 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 44.

The square root of 396447704 is about 19910.9945507501. The cubic root of 396447704 is about 734.6186826118.

The spelling of 396447704 in words is "three hundred ninety-six million, four hundred forty-seven thousand, seven hundred four".