620936349 has 32 divisors (see below), whose sum is σ = 928005120. Its totient is φ = 366038400.

The previous prime is 620936347. The next prime is 620936353. The reversal of 620936349 is 943639026.

It is not a de Polignac number, because 620936349 - 2¹ = 620936347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620936349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620936341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 739672 + ... + 740510.

It is an arithmetic number, because the mean of its divisors is an integer number (29000160).

Almost surely, 2^620936349 is an apocalyptic number.

It is an amenable number.

620936349 is a deficient number, since it is larger than the sum of its proper divisors (307068771).

620936349 is a wasteful number, since it uses less digits than its factorization.

620936349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441.

The product of its (nonzero) digits is 209952, while the sum is 42.

The square root of 620936349 is about 24918.5944427048. The cubic root of 620936349 is about 853.1309440099.

The spelling of 620936349 in words is "six hundred twenty million, nine hundred thirty-six thousand, three hundred forty-nine".