11947942 has 16 divisors (see below), whose sum is σ = 18714240. Its totient is φ = 5713792.

The previous prime is 11947931. The next prime is 11947961. The reversal of 11947942 is 24974911.

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, 5643 + ... + 7465.

It is an arithmetic number, because the mean of its divisors is an integer number (1169640).

Almost surely, 2^11947942 is an apocalyptic number.

11947942 is a deficient number, since it is larger than the sum of its proper divisors (6766298).

11947942 is a wasteful number, since it uses less digits than its factorization.

11947942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967.

The product of its digits is 18144, while the sum is 37.

The square root of 11947942 is about 3456.5795231703. The cubic root of 11947942 is about 228.6113045385.

The spelling of 11947942 in words is "eleven million, nine hundred forty-seven thousand, nine hundred forty-two".