398051351 has 2 divisors, whose sum is σ = 398051352. Its totient is φ = 398051350.

The previous prime is 398051327. The next prime is 398051389. The reversal of 398051351 is 153150893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 398051351 - 2⁶ = 398051287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398051551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199025675 + 199025676.

It is an arithmetic number, because the mean of its divisors is an integer number (199025676).

Almost surely, 2^398051351 is an apocalyptic number.

398051351 is a deficient number, since it is larger than the sum of its proper divisors (1).

398051351 is an equidigital number, since it uses as much as digits as its factorization.

398051351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 398051351 is about 19951.2242982730. The cubic root of 398051351 is about 735.6078708024.

The spelling of 398051351 in words is "three hundred ninety-eight million, fifty-one thousand, three hundred fifty-one".