622890505 has 8 divisors (see below), whose sum is σ = 747618624. Its totient is φ = 498212400.

The previous prime is 622890493. The next prime is 622890511. The reversal of 622890505 is 505098226.

It is a happy number.

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

It is not a de Polignac number, because 622890505 - 2⁷ = 622890377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25290 + ... + 43420.

It is an arithmetic number, because the mean of its divisors is an integer number (93452328).

Almost surely, 2^622890505 is an apocalyptic number.

It is an amenable number.

622890505 is a deficient number, since it is larger than the sum of its proper divisors (124728119).

622890505 is a wasteful number, since it uses less digits than its factorization.

622890505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25007.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 622890505 is about 24957.7744400417. The cubic root of 622890505 is about 854.0249728980.

The spelling of 622890505 in words is "six hundred twenty-two million, eight hundred ninety thousand, five hundred five".