622172654 has 8 divisors (see below), whose sum is σ = 941821320. Its totient is φ = 308232216.

The previous prime is 622172627. The next prime is 622172657. The reversal of 622172654 is 456271226.

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

It is a super-2 number, since 2×622172654² = 774197622770807432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622172657) 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, 1426784 + ... + 1427219.

It is an arithmetic number, because the mean of its divisors is an integer number (117727665).

Almost surely, 2^622172654 is an apocalyptic number.

622172654 is a deficient number, since it is larger than the sum of its proper divisors (319648666).

622172654 is a wasteful number, since it uses less digits than its factorization.

622172654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854114.

The product of its digits is 40320, while the sum is 35.

The square root of 622172654 is about 24943.3889838570. The cubic root of 622172654 is about 853.6967727113.

The spelling of 622172654 in words is "six hundred twenty-two million, one hundred seventy-two thousand, six hundred fifty-four".