91419485 has 4 divisors (see below), whose sum is σ = 109703388. Its totient is φ = 73135584.

The previous prime is 91419451. The next prime is 91419487. The reversal of 91419485 is 58491419.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58491419 = 7 ⋅8355917.

It can be written as a sum of positive squares in 2 ways, for example, as 68790436 + 22629049 = 8294^2 + 4757^2 .

It is a cyclic number.

It is not a de Polignac number, because 91419485 - 2¹⁰ = 91418461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91419487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9141944 + ... + 9141953.

It is an arithmetic number, because the mean of its divisors is an integer number (27425847).

Almost surely, 2^91419485 is an apocalyptic number.

It is an amenable number.

91419485 is a deficient number, since it is larger than the sum of its proper divisors (18283903).

91419485 is a wasteful number, since it uses less digits than its factorization.

91419485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18283902.

The product of its digits is 51840, while the sum is 41.

The square root of 91419485 is about 9561.3537221463. The cubic root of 91419485 is about 450.4842277254.

The spelling of 91419485 in words is "ninety-one million, four hundred nineteen thousand, four hundred eighty-five".