622737897 has 16 divisors (see below), whose sum is σ = 887702400. Its totient is φ = 386940672.

The previous prime is 622737881. The next prime is 622737917. The reversal of 622737897 is 798737226.

It is not a de Polignac number, because 622737897 - 2⁴ = 622737881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (622737877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54022 + ... + 64527.

It is an arithmetic number, because the mean of its divisors is an integer number (55481400).

Almost surely, 2^622737897 is an apocalyptic number.

It is an amenable number.

622737897 is a deficient number, since it is larger than the sum of its proper divisors (264964503).

622737897 is a wasteful number, since it uses less digits than its factorization.

622737897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118672.

The product of its digits is 1778112, while the sum is 51.

The square root of 622737897 is about 24954.7169288694. The cubic root of 622737897 is about 853.9552219080.

The spelling of 622737897 in words is "six hundred twenty-two million, seven hundred thirty-seven thousand, eight hundred ninety-seven".