621336346 has 4 divisors (see below), whose sum is σ = 932004522. Its totient is φ = 310668172.

The previous prime is 621336299. The next prime is 621336367. The reversal of 621336346 is 643633126.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 620757225 + 579121 = 24915^2 + 761^2 .

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 as a sum of consecutive naturals, namely, 155334085 + ... + 155334088.

Almost surely, 2^621336346 is an apocalyptic number.

621336346 is a deficient number, since it is larger than the sum of its proper divisors (310668176).

621336346 is a wasteful number, since it uses less digits than its factorization.

621336346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310668175.

The product of its digits is 46656, while the sum is 34.

The square root of 621336346 is about 24926.6192252379. The cubic root of 621336346 is about 853.3140956696.

The spelling of 621336346 in words is "six hundred twenty-one million, three hundred thirty-six thousand, three hundred forty-six".