398975486 has 32 divisors (see below), whose sum is σ = 747586560. Its totient is φ = 155475936.

The previous prime is 398975461. The next prime is 398975491. The reversal of 398975486 is 684579893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4166 + ... + 28553.

It is an arithmetic number, because the mean of its divisors is an integer number (23362080).

Almost surely, 2^398975486 is an apocalyptic number.

398975486 is a deficient number, since it is larger than the sum of its proper divisors (348611074).

398975486 is a wasteful number, since it uses less digits than its factorization.

398975486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32808.

The product of its digits is 13063680, while the sum is 59.

The square root of 398975486 is about 19974.3707285111. The cubic root of 398975486 is about 736.1767049234.

The spelling of 398975486 in words is "three hundred ninety-eight million, nine hundred seventy-five thousand, four hundred eighty-six".