7921132 has 6 divisors (see below), whose sum is σ = 13861988. Its totient is φ = 3960564.

The previous prime is 7921129. The next prime is 7921141. The reversal of 7921132 is 2311297.

It is a super-2 number, since 2×7921132² = 125488664322848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7921097 and 7921106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990138 + ... + 990145.

Almost surely, 2^7921132 is an apocalyptic number.

It is an amenable number.

7921132 is a deficient number, since it is larger than the sum of its proper divisors (5940856).

7921132 is a wasteful number, since it uses less digits than its factorization.

7921132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980287 (or 1980285 counting only the distinct ones).

The product of its digits is 756, while the sum is 25.

The square root of 7921132 is about 2814.4505680505. The cubic root of 7921132 is about 199.3405949811.

The spelling of 7921132 in words is "seven million, nine hundred twenty-one thousand, one hundred thirty-two".