11861974 has 8 divisors (see below), whose sum is σ = 18566640. Its totient is φ = 5673096.

The previous prime is 11861959. The next prime is 11861987. The reversal of 11861974 is 47916811.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128889 + ... + 128980.

It is an arithmetic number, because the mean of its divisors is an integer number (2320830).

Almost surely, 2^11861974 is an apocalyptic number.

11861974 is a deficient number, since it is larger than the sum of its proper divisors (6704666).

11861974 is a wasteful number, since it uses less digits than its factorization.

11861974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257894.

The product of its digits is 12096, while the sum is 37.

The square root of 11861974 is about 3444.1216587107. The cubic root of 11861974 is about 228.0616817828.

It can be divided in two parts, 1186 and 1974, that added together give a triangular number (3160 = T₇₉).

The spelling of 11861974 in words is "eleven million, eight hundred sixty-one thousand, nine hundred seventy-four".