620104615 has 32 divisors (see below), whose sum is σ = 846558720. Its totient is φ = 432273024.

The previous prime is 620104543. The next prime is 620104637. The reversal of 620104615 is 516401026.

It is a cyclic number.

It is not a de Polignac number, because 620104615 - 2¹⁵ = 620071847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620104615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 427822 + ... + 429268.

It is an arithmetic number, because the mean of its divisors is an integer number (26454960).

Almost surely, 2^620104615 is an apocalyptic number.

620104615 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

620104615 is a deficient number, since it is larger than the sum of its proper divisors (226454105).

620104615 is a wasteful number, since it uses less digits than its factorization.

620104615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 620104615 is about 24901.8998271216. The cubic root of 620104615 is about 852.7498555283.

The spelling of 620104615 in words is "six hundred twenty million, one hundred four thousand, six hundred fifteen".