624120617 has 4 divisors (see below), whose sum is σ = 651256320. Its totient is φ = 596984916.

The previous prime is 624120529. The next prime is 624120659. The reversal of 624120617 is 716021426.

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.

It is a cyclic number.

It is not a de Polignac number, because 624120617 - 2²⁰ = 623072041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 624120617.

It is not an unprimeable number, because it can be changed into a prime (624120667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13567817 + ... + 13567862.

It is an arithmetic number, because the mean of its divisors is an integer number (162814080).

Almost surely, 2^624120617 is an apocalyptic number.

It is an amenable number.

624120617 is a deficient number, since it is larger than the sum of its proper divisors (27135703).

624120617 is a wasteful number, since it uses less digits than its factorization.

624120617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27135702.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 624120617 is about 24982.4061491282. The cubic root of 624120617 is about 854.5867921163.

The spelling of 624120617 in words is "six hundred twenty-four million, one hundred twenty thousand, six hundred seventeen".