398084776 has 32 divisors (see below), whose sum is σ = 769712040. Its totient is φ = 192872448.

The previous prime is 398084737. The next prime is 398084779. The reversal of 398084776 is 677480893.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 319336900 + 78747876 = 17870^2 + 8874^2 .

It is not an unprimeable number, because it can be changed into a prime (398084779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73456 + ... + 78688.

Almost surely, 2^398084776 is an apocalyptic number.

It is an amenable number.

398084776 is a deficient number, since it is larger than the sum of its proper divisors (371627264).

398084776 is a wasteful number, since it uses less digits than its factorization.

398084776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533 (or 5529 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 398084776 is about 19952.0619485807. The cubic root of 398084776 is about 735.6284602773.

The spelling of 398084776 in words is "three hundred ninety-eight million, eighty-four thousand, seven hundred seventy-six".