398627007 has 16 divisors (see below), whose sum is σ = 556243200. Its totient is φ = 253449152.

The previous prime is 398626993. The next prime is 398627023. The reversal of 398627007 is 700726893.

It is a cyclic number.

It is not a de Polignac number, because 398627007 - 2²³ = 390238399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 398627007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398627027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15619 + ... + 32267.

It is an arithmetic number, because the mean of its divisors is an integer number (34765200).

Almost surely, 2^398627007 is an apocalyptic number.

398627007 is a deficient number, since it is larger than the sum of its proper divisors (157616193).

398627007 is a wasteful number, since it uses less digits than its factorization.

398627007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17022.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 398627007 is about 19965.6456694994. The cubic root of 398627007 is about 735.9623084185.

The spelling of 398627007 in words is "three hundred ninety-eight million, six hundred twenty-seven thousand, seven".