91619714 has 8 divisors (see below), whose sum is σ = 137561340. Its totient is φ = 45765936.

The previous prime is 91619711. The next prime is 91619719. The reversal of 91619714 is 41791619.

It can be written as a sum of positive squares in 2 ways, for example, as 79834225 + 11785489 = 8935^2 + 3433^2 .

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

It is not an unprimeable number, because it can be changed into a prime (91619711) 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, 19289 + ... + 23564.

Almost surely, 2^91619714 is an apocalyptic number.

91619714 is a deficient number, since it is larger than the sum of its proper divisors (45941626).

91619714 is a wasteful number, since it uses less digits than its factorization.

91619714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43924.

The product of its digits is 13608, while the sum is 38.

The square root of 91619714 is about 9571.8187404484. The cubic root of 91619714 is about 450.8128747812.

The spelling of 91619714 in words is "ninety-one million, six hundred nineteen thousand, seven hundred fourteen".