91614814 has 4 divisors (see below), whose sum is σ = 137422224. Its totient is φ = 45807406.

The previous prime is 91614767. The next prime is 91614823. The reversal of 91614814 is 41841619.

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

It is a self number, because there is not a number n which added to its sum of digits gives 91614814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22903702 + ... + 22903705.

It is an arithmetic number, because the mean of its divisors is an integer number (34355556).

Almost surely, 2^91614814 is an apocalyptic number.

91614814 is a deficient number, since it is larger than the sum of its proper divisors (45807410).

91614814 is a wasteful number, since it uses less digits than its factorization.

91614814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45807409.

The product of its digits is 6912, while the sum is 34.

The square root of 91614814 is about 9571.5627773107. The cubic root of 91614814 is about 450.8048378556.

The spelling of 91614814 in words is "ninety-one million, six hundred fourteen thousand, eight hundred fourteen".