947891132 has 24 divisors (see below), whose sum is σ = 1667575056. Its totient is φ = 471449088.

The previous prime is 947891101. The next prime is 947891149. The reversal of 947891132 is 231198749.

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, 1110818 + ... + 1111670.

It is an arithmetic number, because the mean of its divisors is an integer number (69482294).

Almost surely, 2^947891132 is an apocalyptic number.

It is an amenable number.

947891132 is a deficient number, since it is larger than the sum of its proper divisors (719683924).

947891132 is a wasteful number, since it uses less digits than its factorization.

947891132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997 (or 1995 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 947891132 is about 30787.8406517898. The cubic root of 947891132 is about 982.3196239043.

The spelling of 947891132 in words is "nine hundred forty-seven million, eight hundred ninety-one thousand, one hundred thirty-two".