298631961 has 8 divisors (see below), whose sum is σ = 442417760. Its totient is φ = 199087956.

The previous prime is 298631953. The next prime is 298631969. The reversal of 298631961 is 169136892.

It is a happy number.

298631961 is a `hidden beast` number, since 2 + 9 + 8 + 631 + 9 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (298631953) and next prime (298631969).

It is not a de Polignac number, because 298631961 - 2³ = 298631953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298631969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5530195 + ... + 5530248.

It is an arithmetic number, because the mean of its divisors is an integer number (55302220).

Almost surely, 2^298631961 is an apocalyptic number.

It is an amenable number.

298631961 is a deficient number, since it is larger than the sum of its proper divisors (143785799).

298631961 is a wasteful number, since it uses less digits than its factorization.

298631961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11060452 (or 11060446 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 298631961 is about 17280.9710664650. The cubic root of 298631961 is about 668.4138323127.

The spelling of 298631961 in words is "two hundred ninety-eight million, six hundred thirty-one thousand, nine hundred sixty-one".