398882805623 has 2 divisors, whose sum is σ = 398882805624. Its totient is φ = 398882805622.

The previous prime is 398882805593. The next prime is 398882805661. The reversal of 398882805623 is 326508288893.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 398882805623 - 2²² = 398878611319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398882805683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199441402811 + 199441402812.

It is an arithmetic number, because the mean of its divisors is an integer number (199441402812).

Almost surely, 2^398882805623 is an apocalyptic number.

398882805623 is a deficient number, since it is larger than the sum of its proper divisors (1).

398882805623 is an equidigital number, since it uses as much as digits as its factorization.

398882805623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39813120, while the sum is 62.

The spelling of 398882805623 in words is "three hundred ninety-eight billion, eight hundred eighty-two million, eight hundred five thousand, six hundred twenty-three".