620741699 has 4 divisors (see below), whose sum is σ = 620915736. Its totient is φ = 620567664.

The previous prime is 620741683. The next prime is 620741713. The reversal of 620741699 is 996147026.

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 620741699 - 2⁴ = 620741683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620741629) 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, 81554 + ... + 88839.

It is an arithmetic number, because the mean of its divisors is an integer number (155228934).

Almost surely, 2^620741699 is an apocalyptic number.

620741699 is a deficient number, since it is larger than the sum of its proper divisors (174037).

620741699 is a wasteful number, since it uses less digits than its factorization.

620741699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174036.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 620741699 is about 24914.6884186819. The cubic root of 620741699 is about 853.0417887131.

The spelling of 620741699 in words is "six hundred twenty million, seven hundred forty-one thousand, six hundred ninety-nine".