11921498 has 8 divisors (see below), whose sum is σ = 18659808. Its totient is φ = 5701564.

The previous prime is 11921477. The next prime is 11921501. The reversal of 11921498 is 89412911.

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

It is a super-2 number, since 2×11921498² = 284244229128008, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129536 + ... + 129627.

It is an arithmetic number, because the mean of its divisors is an integer number (2332476).

Almost surely, 2^11921498 is an apocalyptic number.

11921498 is a deficient number, since it is larger than the sum of its proper divisors (6738310).

11921498 is a wasteful number, since it uses less digits than its factorization.

11921498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259188.

The product of its digits is 5184, while the sum is 35.

The square root of 11921498 is about 3452.7522355362. The cubic root of 11921498 is about 228.4425205795.

The spelling of 11921498 in words is "eleven million, nine hundred twenty-one thousand, four hundred ninety-eight".