616223998 has 16 divisors (see below), whose sum is σ = 1047831120. Its totient is φ = 269441856.

The previous prime is 616223969. The next prime is 616224019. The reversal of 616223998 is 899322616.

It is a super-2 number, since 2×616223998² = 759464031422208008, which contains 22 as substring.

It is a congruent 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, 623215 + ... + 624202.

It is an arithmetic number, because the mean of its divisors is an integer number (65489445).

Almost surely, 2^616223998 is an apocalyptic number.

616223998 is a deficient number, since it is larger than the sum of its proper divisors (431607122).

616223998 is a wasteful number, since it uses less digits than its factorization.

616223998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247451.

The product of its digits is 279936, while the sum is 46.

The square root of 616223998 is about 24823.8594501339. The cubic root of 616223998 is about 850.9672946550.

The spelling of 616223998 in words is "six hundred sixteen million, two hundred twenty-three thousand, nine hundred ninety-eight".