91669352 has 24 divisors (see below), whose sum is σ = 179686290. Its totient is φ = 43839840.

The previous prime is 91669343. The next prime is 91669363. The reversal of 91669352 is 25396619.

It can be written as a sum of positive squares in only one way, i.e., 83795716 + 7873636 = 9154^2 + 2806^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6599 + ... + 15062.

Almost surely, 2^91669352 is an apocalyptic number.

91669352 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

91669352 is a deficient number, since it is larger than the sum of its proper divisors (88016938).

91669352 is a wasteful number, since it uses less digits than its factorization.

91669352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21713 (or 21686 counting only the distinct ones).

The product of its digits is 87480, while the sum is 41.

The square root of 91669352 is about 9574.4113134960. The cubic root of 91669352 is about 450.8942743275.

The spelling of 91669352 in words is "ninety-one million, six hundred sixty-nine thousand, three hundred fifty-two".