616562623 has 2 divisors, whose sum is σ = 616562624. Its totient is φ = 616562622.

The previous prime is 616562603. The next prime is 616562657. The reversal of 616562623 is 326265616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 616562623 - 2¹³ = 616554431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616562603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308281311 + 308281312.

It is an arithmetic number, because the mean of its divisors is an integer number (308281312).

Almost surely, 2^616562623 is an apocalyptic number.

616562623 is a deficient number, since it is larger than the sum of its proper divisors (1).

616562623 is an equidigital number, since it uses as much as digits as its factorization.

616562623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 37.

The square root of 616562623 is about 24830.6790684427. The cubic root of 616562623 is about 851.1231395180.

The spelling of 616562623 in words is "six hundred sixteen million, five hundred sixty-two thousand, six hundred twenty-three".