620707395 has 64 divisors (see below), whose sum is σ = 1246740480. Its totient is φ = 256176000.

The previous prime is 620707361. The next prime is 620707397. The reversal of 620707395 is 593707026.

It is a Cunningham number, because it is equal to 24914²-1.

It is not a de Polignac number, because 620707395 - 2⁷ = 620707267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620707397) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 172626 + ... + 176184.

It is an arithmetic number, because the mean of its divisors is an integer number (19480320).

Almost surely, 2^620707395 is an apocalyptic number.

620707395 is an abundant number, since it is smaller than the sum of its proper divisors (626033085).

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

620707395 is a wasteful number, since it uses less digits than its factorization.

620707395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736.

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 620707395 is about 24913.9999799310. Note that the first 4 decimals coincide. The cubic root of 620707395 is about 853.0260745630.

The spelling of 620707395 in words is "six hundred twenty million, seven hundred seven thousand, three hundred ninety-five".