11990973 has 8 divisors (see below), whose sum is σ = 16007200. Its totient is φ = 7984368.

The previous prime is 11990971. The next prime is 11990987. The reversal of 11990973 is 37909911.

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

It is not a de Polignac number, because 11990973 - 2¹ = 11990971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11990971) 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, 1338 + ... + 5076.

It is an arithmetic number, because the mean of its divisors is an integer number (2000900).

Almost surely, 2^11990973 is an apocalyptic number.

It is an amenable number.

11990973 is a deficient number, since it is larger than the sum of its proper divisors (4016227).

11990973 is a wasteful number, since it uses less digits than its factorization.

11990973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811.

The product of its (nonzero) digits is 15309, while the sum is 39.

The square root of 11990973 is about 3462.7984347923. The cubic root of 11990973 is about 228.8854266905.

The spelling of 11990973 in words is "eleven million, nine hundred ninety thousand, nine hundred seventy-three".