91423346 has 16 divisors (see below), whose sum is σ = 157473600. Its totient is φ = 38994480.

The previous prime is 91423333. The next prime is 91423349. The reversal of 91423346 is 64332419.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91423349) 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, 12521 + ... + 18428.

It is an arithmetic number, because the mean of its divisors is an integer number (9842100).

Almost surely, 2^91423346 is an apocalyptic number.

91423346 is a deficient number, since it is larger than the sum of its proper divisors (66050254).

91423346 is a wasteful number, since it uses less digits than its factorization.

91423346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31169.

The product of its digits is 15552, while the sum is 32.

The square root of 91423346 is about 9561.5556265704. Note that the first 3 decimals coincide. The cubic root of 91423346 is about 450.4905695358.

The spelling of 91423346 in words is "ninety-one million, four hundred twenty-three thousand, three hundred forty-six".