398793951 has 12 divisors (see below), whose sum is σ = 594617920. Its totient is φ = 257286240.

The previous prime is 398793937. The next prime is 398793961. The reversal of 398793951 is 159397893.

It is not a de Polignac number, because 398793951 - 2¹⁵ = 398761183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398793931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 714406 + ... + 714963.

Almost surely, 2^398793951 is an apocalyptic number.

398793951 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

398793951 is a deficient number, since it is larger than the sum of its proper divisors (195823969).

398793951 is a wasteful number, since it uses less digits than its factorization.

398793951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429406 (or 1429403 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 54.

The square root of 398793951 is about 19969.8260132631. The cubic root of 398793951 is about 736.0650338081.

The spelling of 398793951 in words is "three hundred ninety-eight million, seven hundred ninety-three thousand, nine hundred fifty-one".