620359791 has 4 divisors (see below), whose sum is σ = 827146392. Its totient is φ = 413573192.

The previous prime is 620359781. The next prime is 620359829. The reversal of 620359791 is 197953026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 620359791 - 2²⁹ = 83488879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620359711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103393296 + ... + 103393301.

It is an arithmetic number, because the mean of its divisors is an integer number (206786598).

Almost surely, 2^620359791 is an apocalyptic number.

620359791 is a deficient number, since it is larger than the sum of its proper divisors (206786601).

620359791 is a wasteful number, since it uses less digits than its factorization.

620359791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206786600.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 620359791 is about 24907.0229252715. The cubic root of 620359791 is about 852.8668096952.

The spelling of 620359791 in words is "six hundred twenty million, three hundred fifty-nine thousand, seven hundred ninety-one".