620620423 has 8 divisors (see below), whose sum is σ = 627175328. Its totient is φ = 614075904.

The previous prime is 620620421. The next prime is 620620433. The reversal of 620620423 is 324026026.

It is a happy number.

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 620620423 - 2¹ = 620620421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620620421) 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, 191311 + ... + 194527.

It is an arithmetic number, because the mean of its divisors is an integer number (78396916).

Almost surely, 2^620620423 is an apocalyptic number.

620620423 is a deficient number, since it is larger than the sum of its proper divisors (6554905).

620620423 is a wasteful number, since it uses less digits than its factorization.

620620423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 620620423 is about 24912.2544744549. The cubic root of 620620423 is about 852.9862313939.

Adding to 620620423 its reverse (324026026), we get a palindrome (944646449).

The spelling of 620620423 in words is "six hundred twenty million, six hundred twenty thousand, four hundred twenty-three".