620979359 has 16 divisors (see below), whose sum is σ = 833763840. Its totient is φ = 446657760.

The previous prime is 620979341. The next prime is 620979367. The reversal of 620979359 is 953979026.

It is a cyclic number.

It is not a de Polignac number, because 620979359 - 2²⁸ = 352543903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620979319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309179 + ... + 311180.

It is an arithmetic number, because the mean of its divisors is an integer number (52110240).

Almost surely, 2^620979359 is an apocalyptic number.

620979359 is a deficient number, since it is larger than the sum of its proper divisors (212784481).

620979359 is a wasteful number, since it uses less digits than its factorization.

620979359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620390.

The product of its (nonzero) digits is 918540, while the sum is 50.

The square root of 620979359 is about 24919.4574379139. The cubic root of 620979359 is about 853.1506413132.

It can be divided in two parts, 620 and 979359, that added together give a palindrome (979979).

The spelling of 620979359 in words is "six hundred twenty million, nine hundred seventy-nine thousand, three hundred fifty-nine".