91323214 has 8 divisors (see below), whose sum is σ = 137267568. Its totient is φ = 45567360.

The previous prime is 91323191. The next prime is 91323217. The reversal of 91323214 is 41232319.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91323217) 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, 45907 + ... + 47854.

It is an arithmetic number, because the mean of its divisors is an integer number (17158446).

Almost surely, 2^91323214 is an apocalyptic number.

91323214 is a deficient number, since it is larger than the sum of its proper divisors (45944354).

91323214 is a wasteful number, since it uses less digits than its factorization.

91323214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94250.

The product of its digits is 1296, while the sum is 25.

The square root of 91323214 is about 9556.3180148005. The cubic root of 91323214 is about 450.3260419026.

The spelling of 91323214 in words is "ninety-one million, three hundred twenty-three thousand, two hundred fourteen".