391676132 has 6 divisors (see below), whose sum is σ = 685433238. Its totient is φ = 195838064.

The previous prime is 391676119. The next prime is 391676147. The reversal of 391676132 is 231676193.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 256512256 + 135163876 = 16016^2 + 11626^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48959513 + ... + 48959520.

It is an arithmetic number, because the mean of its divisors is an integer number (114238873).

Almost surely, 2^391676132 is an apocalyptic number.

It is an amenable number.

391676132 is a deficient number, since it is larger than the sum of its proper divisors (293757106).

391676132 is a wasteful number, since it uses less digits than its factorization.

391676132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97919037 (or 97919035 counting only the distinct ones).

The product of its digits is 40824, while the sum is 38.

The square root of 391676132 is about 19790.8092810779. The cubic root of 391676132 is about 731.6595334069.

The spelling of 391676132 in words is "three hundred ninety-one million, six hundred seventy-six thousand, one hundred thirty-two".