1098868279 has 8 divisors (see below), whose sum is σ = 1111563648. Its totient is φ = 1086218040.

The previous prime is 1098868259. The next prime is 1098868289. The reversal of 1098868279 is 9728688901.

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

It is a cyclic number.

It is not a de Polignac number, because 1098868279 - 2⁵ = 1098868247 is a prime.

It is a super-2 number, since 2×1098868279² = 2415022989184843682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098868229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38974 + ... + 60964.

It is an arithmetic number, because the mean of its divisors is an integer number (138945456).

Almost surely, 2^1098868279 is an apocalyptic number.

1098868279 is a deficient number, since it is larger than the sum of its proper divisors (12695369).

1098868279 is a wasteful number, since it uses less digits than its factorization.

1098868279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22565.

The product of its (nonzero) digits is 3483648, while the sum is 58.

The square root of 1098868279 is about 33149.1821769407. The cubic root of 1098868279 is about 1031.9259778924.

The spelling of 1098868279 in words is "one billion, ninety-eight million, eight hundred sixty-eight thousand, two hundred seventy-nine".