91479459 has 8 divisors (see below), whose sum is σ = 122678352. Its totient is φ = 60633440.

The previous prime is 91479413. The next prime is 91479461. The reversal of 91479459 is 95497419.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91479459 - 2⁷ = 91479331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91479469) 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 7 ways as a sum of consecutive naturals, for example, 87612 + ... + 88649.

It is an arithmetic number, because the mean of its divisors is an integer number (15334794).

Almost surely, 2^91479459 is an apocalyptic number.

91479459 is a deficient number, since it is larger than the sum of its proper divisors (31198893).

91479459 is a wasteful number, since it uses less digits than its factorization.

91479459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176437.

The product of its digits is 408240, while the sum is 48.

The square root of 91479459 is about 9564.4894793188. The cubic root of 91479459 is about 450.5827167042.

The spelling of 91479459 in words is "ninety-one million, four hundred seventy-nine thousand, four hundred fifty-nine".