621832541 has 4 divisors (see below), whose sum is σ = 678362784. Its totient is φ = 565302300.

The previous prime is 621832499. The next prime is 621832543. The reversal of 621832541 is 145238126.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 621832541 - 2¹⁰ = 621831517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 621832498 and 621832507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621832543) 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 3 ways as a sum of consecutive naturals, for example, 28265105 + ... + 28265126.

It is an arithmetic number, because the mean of its divisors is an integer number (169590696).

Almost surely, 2^621832541 is an apocalyptic number.

It is an amenable number.

621832541 is a deficient number, since it is larger than the sum of its proper divisors (56530243).

621832541 is a wasteful number, since it uses less digits than its factorization.

621832541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56530242.

The product of its digits is 11520, while the sum is 32.

The square root of 621832541 is about 24936.5703535991. The cubic root of 621832541 is about 853.5411855163.

The spelling of 621832541 in words is "six hundred twenty-one million, eight hundred thirty-two thousand, five hundred forty-one".