393482984 has 8 divisors (see below), whose sum is σ = 737780610. Its totient is φ = 196741488.

The previous prime is 393482983. The next prime is 393482987. The reversal of 393482984 is 489284393.

It can be written as a sum of positive squares in only one way, i.e., 252110884 + 141372100 = 15878^2 + 11890^2 .

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

It is not an unprimeable number, because it can be changed into a prime (393482983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24592679 + ... + 24592694.

Almost surely, 2^393482984 is an apocalyptic number.

It is an amenable number.

393482984 is a deficient number, since it is larger than the sum of its proper divisors (344297626).

393482984 is a wasteful number, since it uses less digits than its factorization.

393482984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49185379 (or 49185375 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 50.

The square root of 393482984 is about 19836.4055211623. The cubic root of 393482984 is about 732.7828873933.

The spelling of 393482984 in words is "three hundred ninety-three million, four hundred eighty-two thousand, nine hundred eighty-four".