620704701 has 30 divisors (see below), whose sum is σ = 947646590. Its totient is φ = 404882064.

The previous prime is 620704583. The next prime is 620704739. The reversal of 620704701 is 107407026.

It can be written as a sum of positive squares in only one way, i.e., 362331225 + 258373476 = 19035^2 + 16074^2 .

It is not a de Polignac number, because 620704701 - 2²² = 616510397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620704801) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 177195 + ... + 180663.

Almost surely, 2^620704701 is an apocalyptic number.

It is an amenable number.

620704701 is a deficient number, since it is larger than the sum of its proper divisors (326941889).

620704701 is an equidigital number, since it uses as much as digits as its factorization.

620704701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575 (or 3519 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 620704701 is about 24913.9459138853. The cubic root of 620704701 is about 853.0248404573.

The spelling of 620704701 in words is "six hundred twenty million, seven hundred four thousand, seven hundred one".