623455401 has 8 divisors (see below), whose sum is σ = 831844864. Its totient is φ = 415351440.

The previous prime is 623455397. The next prime is 623455403. The reversal of 623455401 is 104554326.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 623455401 - 2² = 623455397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623455403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66226 + ... + 75051.

It is an arithmetic number, because the mean of its divisors is an integer number (103980608).

Almost surely, 2^623455401 is an apocalyptic number.

It is an amenable number.

623455401 is a deficient number, since it is larger than the sum of its proper divisors (208389463).

623455401 is a wasteful number, since it uses less digits than its factorization.

623455401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142751.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 623455401 is about 24969.0889100904. The cubic root of 623455401 is about 854.2830650888.

The spelling of 623455401 in words is "six hundred twenty-three million, four hundred fifty-five thousand, four hundred one".