91919332 has 6 divisors (see below), whose sum is σ = 160858838. Its totient is φ = 45959664.

The previous prime is 91919329. The next prime is 91919351. The reversal of 91919332 is 23391919.

It can be written as a sum of positive squares in only one way, i.e., 86415616 + 5503716 = 9296^2 + 2346^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91919291 and 91919300.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11489913 + ... + 11489920.

Almost surely, 2^91919332 is an apocalyptic number.

It is an amenable number.

91919332 is a deficient number, since it is larger than the sum of its proper divisors (68939506).

91919332 is a wasteful number, since it uses less digits than its factorization.

91919332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22979837 (or 22979835 counting only the distinct ones).

The product of its digits is 13122, while the sum is 37.

The square root of 91919332 is about 9587.4570142452. The cubic root of 91919332 is about 451.3037614192.

The spelling of 91919332 in words is "ninety-one million, nine hundred nineteen thousand, three hundred thirty-two".