621504346 has 16 divisors (see below), whose sum is σ = 938029824. Its totient is φ = 308834064.

The previous prime is 621504329. The next prime is 621504349. The reversal of 621504346 is 643405126.

621504346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (621504349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255291 + ... + 257713.

It is an arithmetic number, because the mean of its divisors is an integer number (58626864).

Almost surely, 2^621504346 is an apocalyptic number.

621504346 is a deficient number, since it is larger than the sum of its proper divisors (316525478).

621504346 is a wasteful number, since it uses less digits than its factorization.

621504346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 621504346 is about 24929.9888888864. The cubic root of 621504346 is about 853.3909965035.

The spelling of 621504346 in words is "six hundred twenty-one million, five hundred four thousand, three hundred forty-six".