111799598 has 4 divisors (see below), whose sum is σ = 167699400. Its totient is φ = 55899798.

The previous prime is 111799559. The next prime is 111799603. The reversal of 111799598 is 895997111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 895997111 = 6949 ⋅128939.

It is a super-2 number, since 2×111799598² = 24998300225923208, 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 as a sum of consecutive naturals, namely, 27949898 + ... + 27949901.

It is an arithmetic number, because the mean of its divisors is an integer number (41924850).

Almost surely, 2^111799598 is an apocalyptic number.

111799598 is a deficient number, since it is larger than the sum of its proper divisors (55899802).

111799598 is an equidigital number, since it uses as much as digits as its factorization.

111799598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55899801.

The product of its digits is 204120, while the sum is 50.

The square root of 111799598 is about 10573.5329005967. The cubic root of 111799598 is about 481.7407827797.

The spelling of 111799598 in words is "one hundred eleven million, seven hundred ninety-nine thousand, five hundred ninety-eight".