393961484 has 12 divisors (see below), whose sum is σ = 787923024. Its totient is φ = 168840624.

The previous prime is 393961483. The next prime is 393961487. The reversal of 393961484 is 484169393.

It is a happy number.

393961484 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (393961483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7034999 + ... + 7035054.

It is an arithmetic number, because the mean of its divisors is an integer number (65660252).

Almost surely, 2^393961484 is an apocalyptic number.

It is an amenable number.

393961484 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

393961484 is a wasteful number, since it uses less digits than its factorization.

393961484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14070064 (or 14070062 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The square root of 393961484 is about 19848.4630135434. The cubic root of 393961484 is about 733.0798037275.

The spelling of 393961484 in words is "three hundred ninety-three million, nine hundred sixty-one thousand, four hundred eighty-four".