623012479 has 2 divisors, whose sum is σ = 623012480. Its totient is φ = 623012478.

The previous prime is 623012471. The next prime is 623012521. The reversal of 623012479 is 974210326.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 623012479 - 2³ = 623012471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623012471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311506239 + 311506240.

It is an arithmetic number, because the mean of its divisors is an integer number (311506240).

Almost surely, 2^623012479 is an apocalyptic number.

623012479 is a deficient number, since it is larger than the sum of its proper divisors (1).

623012479 is an equidigital number, since it uses as much as digits as its factorization.

623012479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 623012479 is about 24960.2179277345. The cubic root of 623012479 is about 854.0807141251.

The spelling of 623012479 in words is "six hundred twenty-three million, twelve thousand, four hundred seventy-nine".