620795916 has 72 divisors (see below), whose sum is σ = 1735667024. Its totient is φ = 185846400.

The previous prime is 620795899. The next prime is 620795951. The reversal of 620795916 is 619597026.

It is a happy number.

620795916 is a `hidden beast` number, since 620 + 7 + 9 + 5 + 9 + 16 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 610 + ... + 35241.

Almost surely, 2^620795916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620795916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (867833512).

620795916 is an abundant number, since it is smaller than the sum of its proper divisors (1114871108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620795916 is a wasteful number, since it uses less digits than its factorization.

620795916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35911 (or 35906 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 620795916 is about 24915.7764478653. The cubic root of 620795916 is about 853.0666235304.

The spelling of 620795916 in words is "six hundred twenty million, seven hundred ninety-five thousand, nine hundred sixteen".