621967414 has 8 divisors (see below), whose sum is σ = 934269120. Its totient is φ = 310544376.

The previous prime is 621967399. The next prime is 621967427. The reversal of 621967414 is 414769126.

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, 217894 + ... + 220729.

It is an arithmetic number, because the mean of its divisors is an integer number (116783640).

Almost surely, 2^621967414 is an apocalyptic number.

621967414 is a deficient number, since it is larger than the sum of its proper divisors (312301706).

621967414 is a wasteful number, since it uses less digits than its factorization.

621967414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439334.

The product of its digits is 72576, while the sum is 40.

The square root of 621967414 is about 24939.2745283418. The cubic root of 621967414 is about 853.6028909492.

The spelling of 621967414 in words is "six hundred twenty-one million, nine hundred sixty-seven thousand, four hundred fourteen".