621152733 has 8 divisors (see below), whose sum is σ = 832831200. Its totient is φ = 411788048.

The previous prime is 621152699. The next prime is 621152737. The reversal of 621152733 is 337251126.

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

It is a cyclic number.

It is not a de Polignac number, because 621152733 - 2⁹ = 621152221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 621152733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621152737) 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 7 ways as a sum of consecutive naturals, for example, 577818 + ... + 578891.

It is an arithmetic number, because the mean of its divisors is an integer number (104103900).

Almost surely, 2^621152733 is an apocalyptic number.

It is an amenable number.

621152733 is a deficient number, since it is larger than the sum of its proper divisors (211678467).

621152733 is a wasteful number, since it uses less digits than its factorization.

621152733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156891.

The product of its digits is 7560, while the sum is 30.

The square root of 621152733 is about 24922.9358824357. The cubic root of 621152733 is about 853.2300322375.

The spelling of 621152733 in words is "six hundred twenty-one million, one hundred fifty-two thousand, seven hundred thirty-three".