620958905 has 8 divisors (see below), whose sum is σ = 851600832. Its totient is φ = 425800368.

The previous prime is 620958857. The next prime is 620958953. The reversal of 620958905 is 509859026.

It is an interprime number because it is at equal distance from previous prime (620958857) and next prime (620958953).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 620958905 - 2¹² = 620954809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8870807 + ... + 8870876.

It is an arithmetic number, because the mean of its divisors is an integer number (106450104).

Almost surely, 2^620958905 is an apocalyptic number.

It is an amenable number.

620958905 is a deficient number, since it is larger than the sum of its proper divisors (230641927).

620958905 is a wasteful number, since it uses less digits than its factorization.

620958905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17741695.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 620958905 is about 24919.0470323405. The cubic root of 620958905 is about 853.1412741018.

The spelling of 620958905 in words is "six hundred twenty million, nine hundred fifty-eight thousand, nine hundred five".