620705001 has 12 divisors (see below), whose sum is σ = 962726352. Its totient is φ = 354688488.

The previous prime is 620704993. The next prime is 620705017. The reversal of 620705001 is 100507026.

It is not a de Polignac number, because 620705001 - 2³ = 620704993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (620706001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2111095 + ... + 2111388.

It is an arithmetic number, because the mean of its divisors is an integer number (80227196).

Almost surely, 2^620705001 is an apocalyptic number.

It is an amenable number.

620705001 is a deficient number, since it is larger than the sum of its proper divisors (342021351).

620705001 is a wasteful number, since it uses less digits than its factorization.

620705001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222500 (or 4222493 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 620705001 is about 24913.9519346088. The cubic root of 620705001 is about 853.0249778858.

The spelling of 620705001 in words is "six hundred twenty million, seven hundred five thousand, one".