622536421 has 8 divisors (see below), whose sum is σ = 674440704. Its totient is φ = 571206000.

The previous prime is 622536419. The next prime is 622536457. The reversal of 622536421 is 124635226.

622536421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 622536421 - 2¹ = 622536419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622536401) 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, 141205 + ... + 145546.

It is an arithmetic number, because the mean of its divisors is an integer number (84305088).

Almost surely, 2^622536421 is an apocalyptic number.

It is an amenable number.

622536421 is a deficient number, since it is larger than the sum of its proper divisors (51904283).

622536421 is a wasteful number, since it uses less digits than its factorization.

622536421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286931.

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

The square root of 622536421 is about 24950.6797702988. The cubic root of 622536421 is about 853.8631178616.

The spelling of 622536421 in words is "six hundred twenty-two million, five hundred thirty-six thousand, four hundred twenty-one".