612623641 has 8 divisors (see below), whose sum is σ = 704010944. Its totient is φ = 522203760.

The previous prime is 612623639. The next prime is 612623651. The reversal of 612623641 is 146326216.

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

It is a cyclic number.

It is not a de Polignac number, because 612623641 - 2¹ = 612623639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612623651) 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, 240495 + ... + 243028.

It is an arithmetic number, because the mean of its divisors is an integer number (88001368).

Almost surely, 2^612623641 is an apocalyptic number.

It is an amenable number.

612623641 is a deficient number, since it is larger than the sum of its proper divisors (91387303).

612623641 is a wasteful number, since it uses less digits than its factorization.

612623641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483711.

The product of its digits is 10368, while the sum is 31.

The square root of 612623641 is about 24751.2351408975. The cubic root of 612623641 is about 849.3067662616.

Adding to 612623641 its reverse (146326216), we get a palindrome (758949857).

The spelling of 612623641 in words is "six hundred twelve million, six hundred twenty-three thousand, six hundred forty-one".