622431601 has 4 divisors (see below), whose sum is σ = 679016304. Its totient is φ = 565846900.

The previous prime is 622431581. The next prime is 622431613. The reversal of 622431601 is 106134226.

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 622431601 - 2⁷ = 622431473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622431631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28292335 + ... + 28292356.

It is an arithmetic number, because the mean of its divisors is an integer number (169754076).

Almost surely, 2^622431601 is an apocalyptic number.

It is an amenable number.

622431601 is a deficient number, since it is larger than the sum of its proper divisors (56584703).

622431601 is a wasteful number, since it uses less digits than its factorization.

622431601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56584702.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 622431601 is about 24948.5791378988. The cubic root of 622431601 is about 853.8151919075.

Adding to 622431601 its reverse (106134226), we get a palindrome (728565827).

The spelling of 622431601 in words is "six hundred twenty-two million, four hundred thirty-one thousand, six hundred one".