620485137 has 16 divisors (see below), whose sum is σ = 920630080. Its totient is φ = 413030016.

The previous prime is 620485133. The next prime is 620485169. The reversal of 620485137 is 731584026.

It is not a de Polignac number, because 620485137 - 2² = 620485133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620485133) 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, 1098 + ... + 35244.

It is an arithmetic number, because the mean of its divisors is an integer number (57539380).

Almost surely, 2^620485137 is an apocalyptic number.

It is an amenable number.

620485137 is a deficient number, since it is larger than the sum of its proper divisors (300144943).

620485137 is a wasteful number, since it uses less digits than its factorization.

620485137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34829 (or 34823 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 620485137 is about 24909.5390764261. The cubic root of 620485137 is about 852.9242474625.

The spelling of 620485137 in words is "six hundred twenty million, four hundred eighty-five thousand, one hundred thirty-seven".