620923932 has 18 divisors (see below), whose sum is σ = 1569557808. Its totient is φ = 206974632.

The previous prime is 620923903. The next prime is 620923943. The reversal of 620923932 is 239329026.

620923932 is a `hidden beast` number, since 620 + 9 + 23 + 9 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 17247887 = 620923932 / (6 + 2 + 0 + 9 + 2 + 3 + 9 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8623908 + ... + 8623979.

It is an arithmetic number, because the mean of its divisors is an integer number (87197656).

Almost surely, 2^620923932 is an apocalyptic number.

It is an amenable number.

620923932 is an abundant number, since it is smaller than the sum of its proper divisors (948633876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620923932 is a wasteful number, since it uses less digits than its factorization.

620923932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17247897 (or 17247892 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 620923932 is about 24918.3452901672. The cubic root of 620923932 is about 853.1252572233.

The spelling of 620923932 in words is "six hundred twenty million, nine hundred twenty-three thousand, nine hundred thirty-two".