398897682 has 16 divisors (see below), whose sum is σ = 805695552. Its totient is φ = 131649200.

The previous prime is 398897669. The next prime is 398897683. The reversal of 398897682 is 286798893.

It is not an unprimeable number, because it can be changed into a prime (398897683) 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, 328518 + ... + 329729.

It is an arithmetic number, because the mean of its divisors is an integer number (50355972).

Almost surely, 2^398897682 is an apocalyptic number.

398897682 is an abundant number, since it is smaller than the sum of its proper divisors (406797870).

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

398897682 is a wasteful number, since it uses less digits than its factorization.

398897682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658353.

The product of its digits is 10450944, while the sum is 60.

The square root of 398897682 is about 19972.4230377789. The cubic root of 398897682 is about 736.1288480015.

The spelling of 398897682 in words is "three hundred ninety-eight million, eight hundred ninety-seven thousand, six hundred eighty-two".