620115959 has 4 divisors (see below), whose sum is σ = 620409360. Its totient is φ = 619822560.

The previous prime is 620115941. The next prime is 620115989. The reversal of 620115959 is 959511026.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 959511026 = 2 ⋅479755513.

It is a cyclic number.

It is not a de Polignac number, because 620115959 - 2²⁸ = 351680503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620115989) 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, 143507 + ... + 147764.

It is an arithmetic number, because the mean of its divisors is an integer number (155102340).

Almost surely, 2^620115959 is an apocalyptic number.

620115959 is a deficient number, since it is larger than the sum of its proper divisors (293401).

620115959 is a wasteful number, since it uses less digits than its factorization.

620115959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293400.

The product of its (nonzero) digits is 24300, while the sum is 38.

The square root of 620115959 is about 24902.1275998658. The cubic root of 620115959 is about 852.7550554764.

The spelling of 620115959 in words is "six hundred twenty million, one hundred fifteen thousand, nine hundred fifty-nine".