623198955 has 64 divisors (see below), whose sum is σ = 1089584640. Its totient is φ = 303077376.

The previous prime is 623198941. The next prime is 623198969. The reversal of 623198955 is 559891326.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (623198941) and next prime (623198969).

It is not a de Polignac number, because 623198955 - 2⁷ = 623198827 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1191324 + ... + 1191846.

It is an arithmetic number, because the mean of its divisors is an integer number (17024760).

Almost surely, 2^623198955 is an apocalyptic number.

623198955 is a deficient number, since it is larger than the sum of its proper divisors (466385685).

623198955 is a wasteful number, since it uses less digits than its factorization.

623198955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700.

The product of its digits is 583200, while the sum is 48.

The square root of 623198955 is about 24963.9531124379. The cubic root of 623198955 is about 854.1659182332.

The spelling of 623198955 in words is "six hundred twenty-three million, one hundred ninety-eight thousand, nine hundred fifty-five".