91673465 has 8 divisors (see below), whose sum is σ = 118470408. Its totient is φ = 67697280.

The previous prime is 91673447. The next prime is 91673467. The reversal of 91673465 is 56437619.

It can be written as a sum of positive squares in 4 ways, for example, as 5257849 + 86415616 = 2293^2 + 9296^2 .

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

It is not a de Polignac number, because 91673465 - 2⁸ = 91673209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91673467) 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, 705116 + ... + 705245.

It is an arithmetic number, because the mean of its divisors is an integer number (14808801).

Almost surely, 2^91673465 is an apocalyptic number.

It is an amenable number.

91673465 is a deficient number, since it is larger than the sum of its proper divisors (26796943).

91673465 is a wasteful number, since it uses less digits than its factorization.

91673465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410379.

The product of its digits is 136080, while the sum is 41.

The square root of 91673465 is about 9574.6261023603. The cubic root of 91673465 is about 450.9010177678.

The spelling of 91673465 in words is "ninety-one million, six hundred seventy-three thousand, four hundred sixty-five".