91423068 has 48 divisors (see below), whose sum is σ = 242839296. Its totient is φ = 26498560.

The previous prime is 91423063. The next prime is 91423103. The reversal of 91423068 is 86032419.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91423063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12021 + ... + 18092.

It is an arithmetic number, because the mean of its divisors is an integer number (5059152).

Almost surely, 2^91423068 is an apocalyptic number.

It is an amenable number.

91423068 is an abundant number, since it is smaller than the sum of its proper divisors (151416228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91423068 is a wasteful number, since it uses less digits than its factorization.

91423068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30154 (or 30152 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 91423068 is about 9561.5410891759. The cubic root of 91423068 is about 450.4901129183.

The spelling of 91423068 in words is "ninety-one million, four hundred twenty-three thousand, sixty-eight".