91162067 has 4 divisors (see below), whose sum is σ = 92882160. Its totient is φ = 89441976.

The previous prime is 91162061. The next prime is 91162069. The reversal of 91162067 is 76026119.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91162067 - 2¹² = 91157971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91162061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859967 + ... + 860072.

It is an arithmetic number, because the mean of its divisors is an integer number (23220540).

Almost surely, 2^91162067 is an apocalyptic number.

91162067 is a deficient number, since it is larger than the sum of its proper divisors (1720093).

91162067 is a wasteful number, since it uses less digits than its factorization.

91162067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720092.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 91162067 is about 9547.8828543295. The cubic root of 91162067 is about 450.0610073666.

The spelling of 91162067 in words is "ninety-one million, one hundred sixty-two thousand, sixty-seven".