621422601 has 8 divisors (see below), whose sum is σ = 840233664. Its totient is φ = 408446640.

The previous prime is 621422591. The next prime is 621422603. The reversal of 621422601 is 106224126.

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

It is not a de Polignac number, because 621422601 - 2⁹ = 621422089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (621422603) 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, 1458526 + ... + 1458951.

It is an arithmetic number, because the mean of its divisors is an integer number (105029208).

Almost surely, 2^621422601 is an apocalyptic number.

It is an amenable number.

621422601 is a deficient number, since it is larger than the sum of its proper divisors (218811063).

621422601 is a wasteful number, since it uses less digits than its factorization.

621422601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917551.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 621422601 is about 24928.3493436689. The cubic root of 621422601 is about 853.3535800284.

Adding to 621422601 its reverse (106224126), we get a palindrome (727646727).

The spelling of 621422601 in words is "six hundred twenty-one million, four hundred twenty-two thousand, six hundred one".