621694102 has 8 divisors (see below), whose sum is σ = 932657112. Its totient is φ = 310808400.

The previous prime is 621694093. The next prime is 621694121. The reversal of 621694102 is 201496126.

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

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 3 ways as a sum of consecutive naturals, for example, 9202 + ... + 36442.

It is an arithmetic number, because the mean of its divisors is an integer number (116582139).

Almost surely, 2^621694102 is an apocalyptic number.

621694102 is a deficient number, since it is larger than the sum of its proper divisors (310963010).

621694102 is a wasteful number, since it uses less digits than its factorization.

621694102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38654.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 621694102 is about 24933.7943763078. The cubic root of 621694102 is about 853.4778393310.

The spelling of 621694102 in words is "six hundred twenty-one million, six hundred ninety-four thousand, one hundred two".