620961933 has 16 divisors (see below), whose sum is σ = 892785600. Its totient is φ = 382619520.

The previous prime is 620961931. The next prime is 620961937. The reversal of 620961933 is 339169026.

It is not a de Polignac number, because 620961933 - 2¹ = 620961931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 620961891 and 620961900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620961931) 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, 130518 + ... + 135191.

It is an arithmetic number, because the mean of its divisors is an integer number (55799100).

Almost surely, 2^620961933 is an apocalyptic number.

It is an amenable number.

620961933 is a deficient number, since it is larger than the sum of its proper divisors (271823667).

620961933 is a wasteful number, since it uses less digits than its factorization.

620961933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265772.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 620961933 is about 24919.1077890040. The cubic root of 620961933 is about 853.1426608320.

The spelling of 620961933 in words is "six hundred twenty million, nine hundred sixty-one thousand, nine hundred thirty-three".