622749598 has 4 divisors (see below), whose sum is σ = 934124400. Its totient is φ = 311374798.

The previous prime is 622749583. The next prime is 622749601. The reversal of 622749598 is 895947226.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155687398 + ... + 155687401.

It is an arithmetic number, because the mean of its divisors is an integer number (233531100).

Almost surely, 2^622749598 is an apocalyptic number.

622749598 is a deficient number, since it is larger than the sum of its proper divisors (311374802).

622749598 is a wasteful number, since it uses less digits than its factorization.

622749598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311374801.

The product of its digits is 2177280, while the sum is 52.

The square root of 622749598 is about 24954.9513724231. The cubic root of 622749598 is about 853.9605703686.

The spelling of 622749598 in words is "six hundred twenty-two million, seven hundred forty-nine thousand, five hundred ninety-eight".