11872945 has 40 divisors (see below), whose sum is σ = 17747136. Its totient is φ = 7606368.

The previous prime is 11872879. The next prime is 11872951. The reversal of 11872945 is 54927811.

11872945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11872945 - 2⁹ = 11872433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 276094 + ... + 276136.

Almost surely, 2^11872945 is an apocalyptic number.

It is an amenable number.

11872945 is a deficient number, since it is larger than the sum of its proper divisors (5874191).

11872945 is an frugal number, since it uses more digits than its factorization.

11872945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 78 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The square root of 11872945 is about 3445.7140043828. The cubic root of 11872945 is about 228.1319706383.

The spelling of 11872945 in words is "eleven million, eight hundred seventy-two thousand, nine hundred forty-five".