620427265 has 4 divisors (see below), whose sum is σ = 744512724. Its totient is φ = 496341808.

The previous prime is 620427253. The next prime is 620427271. The reversal of 620427265 is 562724026.

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

It can be written as a sum of positive squares in 2 ways, for example, as 401120784 + 219306481 = 20028^2 + 14809^2 .

It is a cyclic number.

It is not a de Polignac number, because 620427265 - 2²¹ = 618330113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 620427265.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62042722 + ... + 62042731.

It is an arithmetic number, because the mean of its divisors is an integer number (186128181).

Almost surely, 2^620427265 is an apocalyptic number.

It is an amenable number.

620427265 is a deficient number, since it is larger than the sum of its proper divisors (124085459).

620427265 is a wasteful number, since it uses less digits than its factorization.

620427265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124085458.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 620427265 is about 24908.3774060054. The cubic root of 620427265 is about 852.8977295204.

The spelling of 620427265 in words is "six hundred twenty million, four hundred twenty-seven thousand, two hundred sixty-five".