620722479 has 16 divisors (see below), whose sum is σ = 943723872. Its totient is φ = 359513088.

The previous prime is 620722463. The next prime is 620722481. The reversal of 620722479 is 974227026.

It is not a de Polignac number, because 620722479 - 2⁴ = 620722463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620722439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467454 + ... + 468779.

It is an arithmetic number, because the mean of its divisors is an integer number (58982742).

Almost surely, 2^620722479 is an apocalyptic number.

620722479 is a deficient number, since it is larger than the sum of its proper divisors (323001393).

620722479 is a wasteful number, since it uses less digits than its factorization.

620722479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936266.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 620722479 is about 24914.3026994536. The cubic root of 620722479 is about 853.0329843894.

The spelling of 620722479 in words is "six hundred twenty million, seven hundred twenty-two thousand, four hundred seventy-nine".