621723425 has 12 divisors (see below), whose sum is σ = 771371760. Its totient is φ = 497098320.

The previous prime is 621723409. The next prime is 621723449. The reversal of 621723425 is 524327126.

621723425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 621723425 - 2⁴ = 621723409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 621723391 and 621723400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46106 + ... + 58044.

It is an arithmetic number, because the mean of its divisors is an integer number (64280980).

Almost surely, 2^621723425 is an apocalyptic number.

It is an amenable number.

621723425 is a deficient number, since it is larger than the sum of its proper divisors (149648335).

621723425 is a wasteful number, since it uses less digits than its factorization.

621723425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14032 (or 14027 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 621723425 is about 24934.3823865762. The cubic root of 621723425 is about 853.4912575791.

The spelling of 621723425 in words is "six hundred twenty-one million, seven hundred twenty-three thousand, four hundred twenty-five".