11801098 has 12 divisors (see below), whose sum is σ = 17910450. Its totient is φ = 5831496.

The previous prime is 11801063. The next prime is 11801129. The reversal of 11801098 is 89010811.

It can be written as a sum of positive squares in only one way, i.e., 11444689 + 356409 = 3383^2 + 597^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59203 + ... + 59401.

Almost surely, 2^11801098 is an apocalyptic number.

11801098 is a deficient number, since it is larger than the sum of its proper divisors (6109352).

11801098 is an equidigital number, since it uses as much as digits as its factorization.

11801098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 11801098 is about 3435.2726238248. The cubic root of 11801098 is about 227.6708727141.

It can be divided in two parts, 1180 and 1098, that added together give a triangular number (2278 = T₆₇).

The spelling of 11801098 in words is "eleven million, eight hundred one thousand, ninety-eight".