91761469 has 4 divisors (see below), whose sum is σ = 96591040. Its totient is φ = 86931900.

The previous prime is 91761401. The next prime is 91761479. The reversal of 91761469 is 96416719.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96416719 = 7 ⋅13773817.

It is a cyclic number.

It is not a de Polignac number, because 91761469 - 2¹⁵ = 91728701 is a prime.

It is a super-2 number, since 2×91761469² = 16840334386075922, 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 (91761479) 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, 2414757 + ... + 2414794.

It is an arithmetic number, because the mean of its divisors is an integer number (24147760).

Almost surely, 2^91761469 is an apocalyptic number.

It is an amenable number.

91761469 is a deficient number, since it is larger than the sum of its proper divisors (4829571).

91761469 is a wasteful number, since it uses less digits than its factorization.

91761469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4829570.

The product of its digits is 81648, while the sum is 43.

The square root of 91761469 is about 9579.2206885529. The cubic root of 91761469 is about 451.0452558064.

The spelling of 91761469 in words is "ninety-one million, seven hundred sixty-one thousand, four hundred sixty-nine".