620147 has 4 divisors (see below), whose sum is σ = 676536. Its totient is φ = 563760.

The previous prime is 620117. The next prime is 620159. The reversal of 620147 is 741026.

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 620147 - 2¹² = 616051 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620147.

It is not an unprimeable number, because it can be changed into a prime (620117) 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, 28178 + ... + 28199.

It is an arithmetic number, because the mean of its divisors is an integer number (169134).

2⁶²⁰¹⁴⁷ is an apocalyptic number.

620147 is a deficient number, since it is larger than the sum of its proper divisors (56389).

620147 is a wasteful number, since it uses less digits than its factorization.

620147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56388.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 620147 is about 787.4941269622. The cubic root of 620147 is about 85.2769283959.

It can be divided in two parts, 620 and 147, that added together give a palindrome (767).

The spelling of 620147 in words is "six hundred twenty thousand, one hundred forty-seven".