620957459 has 8 divisors (see below), whose sum is σ = 629429760. Its totient is φ = 612500616.

The previous prime is 620957437. The next prime is 620957471. The reversal of 620957459 is 954759026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620957459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620957959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93404 + ... + 99830.

It is an arithmetic number, because the mean of its divisors is an integer number (78678720).

Almost surely, 2^620957459 is an apocalyptic number.

620957459 is a deficient number, since it is larger than the sum of its proper divisors (8472301).

620957459 is a wasteful number, since it uses less digits than its factorization.

620957459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7729.

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 620957459 is about 24919.0180183730. The cubic root of 620957459 is about 853.1406118769.

The spelling of 620957459 in words is "six hundred twenty million, nine hundred fifty-seven thousand, four hundred fifty-nine".