620875654 has 32 divisors (see below), whose sum is σ = 1127589120. Its totient is φ = 250462368.

The previous prime is 620875627. The next prime is 620875709. The reversal of 620875654 is 456578026.

It is a self number, because there is not a number n which added to its sum of digits gives 620875654.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34329 + ... + 49195.

It is an arithmetic number, because the mean of its divisors is an integer number (35237160).

Almost surely, 2^620875654 is an apocalyptic number.

620875654 is a deficient number, since it is larger than the sum of its proper divisors (506713466).

620875654 is a wasteful number, since it uses less digits than its factorization.

620875654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15052.

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 620875654 is about 24917.3765473013. The cubic root of 620875654 is about 853.1031459541.

The spelling of 620875654 in words is "six hundred twenty million, eight hundred seventy-five thousand, six hundred fifty-four".