623010997 has 4 divisors (see below), whose sum is σ = 712012576. Its totient is φ = 534009420.

The previous prime is 623010989. The next prime is 623011003. The reversal of 623010997 is 799010326.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 799010326 = 2 ⋅399505163.

It is not a de Polignac number, because 623010997 - 2³ = 623010989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623010907) 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 3 ways as a sum of consecutive naturals, for example, 44500779 + ... + 44500792.

It is an arithmetic number, because the mean of its divisors is an integer number (178003144).

Almost surely, 2^623010997 is an apocalyptic number.

It is an amenable number.

623010997 is a deficient number, since it is larger than the sum of its proper divisors (89001579).

623010997 is an equidigital number, since it uses as much as digits as its factorization.

623010997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89001578.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 623010997 is about 24960.1882404761. The cubic root of 623010997 is about 854.0800369056.

The spelling of 623010997 in words is "six hundred twenty-three million, ten thousand, nine hundred ninety-seven".