620565147 has 12 divisors (see below), whose sum is σ = 920598640. Its totient is φ = 402528528.

The previous prime is 620565091. The next prime is 620565193. The reversal of 620565147 is 741565026.

It is a happy number.

It is not a de Polignac number, because 620565147 - 2¹⁹ = 620040859 is a prime.

It is a super-2 number, since 2×620565147² = 770202203342263218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620560147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 931447 + ... + 932112.

Almost surely, 2^620565147 is an apocalyptic number.

620565147 is a deficient number, since it is larger than the sum of its proper divisors (300033493).

620565147 is a wasteful number, since it uses less digits than its factorization.

620565147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863602 (or 1863599 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 620565147 is about 24911.1450359071. The cubic root of 620565147 is about 852.9609067000.

The spelling of 620565147 in words is "six hundred twenty million, five hundred sixty-five thousand, one hundred forty-seven".