623670131 has 8 divisors (see below), whose sum is σ = 715200864. Its totient is φ = 532748160.

The previous prime is 623670127. The next prime is 623670137. The reversal of 623670131 is 131076326.

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

It is not a de Polignac number, because 623670131 - 2² = 623670127 is a prime.

It is a super-2 number, since 2×623670131² = 777928864603114322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 623670094 and 623670103.

It is not an unprimeable number, because it can be changed into a prime (623670137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149990 + ... + 154091.

It is an arithmetic number, because the mean of its divisors is an integer number (89400108).

Almost surely, 2^623670131 is an apocalyptic number.

623670131 is a deficient number, since it is larger than the sum of its proper divisors (91530733).

623670131 is a wasteful number, since it uses less digits than its factorization.

623670131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304381.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 623670131 is about 24973.3884565151. The cubic root of 623670131 is about 854.3811309896.

It can be divided in two parts, 6236 and 70131, that added together give a palindrome (76367).

The spelling of 623670131 in words is "six hundred twenty-three million, six hundred seventy thousand, one hundred thirty-one".