620970001 has 8 divisors (see below), whose sum is σ = 638996904. Its totient is φ = 603008640.

The previous prime is 620969983. The next prime is 620970029. The reversal of 620970001 is 100079026.

It can be written as a sum of positive squares in 4 ways, for example, as 303595776 + 317374225 = 17424^2 + 17815^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 620970001 - 2¹⁹ = 620445713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620970401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3171 + ... + 35383.

It is an arithmetic number, because the mean of its divisors is an integer number (79874613).

Almost surely, 2^620970001 is an apocalyptic number.

It is an amenable number.

620970001 is a deficient number, since it is larger than the sum of its proper divisors (18026903).

620970001 is a wasteful number, since it uses less digits than its factorization.

620970001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32771.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 620970001 is about 24919.2696722837. The cubic root of 620970001 is about 853.1463557044.

The spelling of 620970001 in words is "six hundred twenty million, nine hundred seventy thousand, one".