621761038 has 8 divisors (see below), whose sum is σ = 932753088. Its totient is φ = 310843344.

The previous prime is 621761033. The next prime is 621761053. The reversal of 621761038 is 830167126.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 621760994 and 621761012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621761033) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13170 + ... + 37642.

It is an arithmetic number, because the mean of its divisors is an integer number (116594136).

Almost surely, 2^621761038 is an apocalyptic number.

621761038 is a deficient number, since it is larger than the sum of its proper divisors (310992050).

621761038 is a wasteful number, since it uses less digits than its factorization.

621761038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37178.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 621761038 is about 24935.1366148253. The cubic root of 621761038 is about 853.5084687259.

The spelling of 621761038 in words is "six hundred twenty-one million, seven hundred sixty-one thousand, thirty-eight".