91952869 has 4 divisors (see below), whose sum is σ = 92029644. Its totient is φ = 91876096.

The previous prime is 91952849. The next prime is 91952879. The reversal of 91952869 is 96825919.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58752225 + 33200644 = 7665^2 + 5762^2 .

It is a cyclic number.

It is not a de Polignac number, because 91952869 - 2¹¹ = 91950821 is a prime.

It is a super-2 number, since 2×91952869² = 16910660234662322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91952849) 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, 36562 + ... + 38995.

It is an arithmetic number, because the mean of its divisors is an integer number (23007411).

Almost surely, 2^91952869 is an apocalyptic number.

It is an amenable number.

91952869 is a deficient number, since it is larger than the sum of its proper divisors (76775).

91952869 is a wasteful number, since it uses less digits than its factorization.

91952869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76774.

The product of its digits is 349920, while the sum is 49.

The square root of 91952869 is about 9589.2058586726. The cubic root of 91952869 is about 451.3586411838.

The spelling of 91952869 in words is "ninety-one million, nine hundred fifty-two thousand, eight hundred sixty-nine".