398283351 has 4 divisors (see below), whose sum is σ = 531044472. Its totient is φ = 265522232.

The previous prime is 398283343. The next prime is 398283449. The reversal of 398283351 is 153382893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153382893 = 3 ⋅51127631.

It is a cyclic number.

It is not a de Polignac number, because 398283351 - 2³ = 398283343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398283251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66380556 + ... + 66380561.

It is an arithmetic number, because the mean of its divisors is an integer number (132761118).

Almost surely, 2^398283351 is an apocalyptic number.

398283351 is a deficient number, since it is larger than the sum of its proper divisors (132761121).

398283351 is a wasteful number, since it uses less digits than its factorization.

398283351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132761120.

The product of its digits is 155520, while the sum is 42.

The square root of 398283351 is about 19957.0376308710. The cubic root of 398283351 is about 735.7507567896.

The spelling of 398283351 in words is "three hundred ninety-eight million, two hundred eighty-three thousand, three hundred fifty-one".