11973998 has 16 divisors (see below), whose sum is σ = 18677760. Its totient is φ = 5751000.

The previous prime is 11973989. The next prime is 11974003. The reversal of 11973998 is 89937911.

It is a happy number.

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, 8723 + ... + 10001.

It is an arithmetic number, because the mean of its divisors is an integer number (1167360).

Almost surely, 2^11973998 is an apocalyptic number.

11973998 is a deficient number, since it is larger than the sum of its proper divisors (6703762).

11973998 is a wasteful number, since it uses less digits than its factorization.

11973998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463.

The product of its digits is 122472, while the sum is 47.

The square root of 11973998 is about 3460.3465144404. The cubic root of 11973998 is about 228.7773685987. Note that the first 3 decimals are identical.

The spelling of 11973998 in words is "eleven million, nine hundred seventy-three thousand, nine hundred ninety-eight".