91401673 has 8 divisors (see below), whose sum is σ = 105576480. Its totient is φ = 78204480.

The previous prime is 91401641. The next prime is 91401691. The reversal of 91401673 is 37610419.

It is a happy number.

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 91401673 - 2⁵ = 91401641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91401073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244203 + ... + 244576.

It is an arithmetic number, because the mean of its divisors is an integer number (13197060).

Almost surely, 2^91401673 is an apocalyptic number.

It is an amenable number.

91401673 is a deficient number, since it is larger than the sum of its proper divisors (14174807).

91401673 is a wasteful number, since it uses less digits than its factorization.

91401673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488807.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 91401673 is about 9560.4222187098. The cubic root of 91401673 is about 450.4549686594.

The spelling of 91401673 in words is "ninety-one million, four hundred one thousand, six hundred seventy-three".