91869292 has 12 divisors (see below), whose sum is σ = 170228520. Its totient is φ = 43232576.

The previous prime is 91869289. The next prime is 91869293. The reversal of 91869292 is 29296819.

It is not an unprimeable number, because it can be changed into a prime (91869293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675442 + ... + 675577.

It is an arithmetic number, because the mean of its divisors is an integer number (14185710).

Almost surely, 2^91869292 is an apocalyptic number.

It is an amenable number.

91869292 is a deficient number, since it is larger than the sum of its proper divisors (78359228).

91869292 is a wasteful number, since it uses less digits than its factorization.

91869292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351040 (or 1351038 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 91869292 is about 9584.8469993005. The cubic root of 91869292 is about 451.2218514118.

The spelling of 91869292 in words is "ninety-one million, eight hundred sixty-nine thousand, two hundred ninety-two".