91480719 has 12 divisors (see below), whose sum is σ = 134071448. Its totient is φ = 55442640.

The previous prime is 91480681. The next prime is 91480733. The reversal of 91480719 is 91708419.

It is a happy number.

It is not a de Polignac number, because 91480719 - 2⁸ = 91480463 is a prime.

It is a super-2 number, since 2×91480719² = 16737443897513922, 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 (91480219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125644 + ... + 126369.

Almost surely, 2^91480719 is an apocalyptic number.

91480719 is a deficient number, since it is larger than the sum of its proper divisors (42590729).

91480719 is a wasteful number, since it uses less digits than its factorization.

91480719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252038 (or 252027 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 91480719 is about 9564.5553477409. Note that the first 3 decimals coincide. The cubic root of 91480719 is about 450.5847854077.

The spelling of 91480719 in words is "ninety-one million, four hundred eighty thousand, seven hundred nineteen".