91418685 has 8 divisors (see below), whose sum is σ = 146269920. Its totient is φ = 48756624.

The previous prime is 91418683. The next prime is 91418689. The reversal of 91418685 is 58681419.

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

It is not a de Polignac number, because 91418685 - 2¹ = 91418683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91418681) 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, 3047275 + ... + 3047304.

It is an arithmetic number, because the mean of its divisors is an integer number (18283740).

Almost surely, 2^91418685 is an apocalyptic number.

It is an amenable number.

91418685 is a deficient number, since it is larger than the sum of its proper divisors (54851235).

91418685 is a wasteful number, since it uses less digits than its factorization.

91418685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6094587.

The product of its digits is 69120, while the sum is 42.

The square root of 91418685 is about 9561.3118869745. The cubic root of 91418685 is about 450.4829136787.

The spelling of 91418685 in words is "ninety-one million, four hundred eighteen thousand, six hundred eighty-five".