91434456 has 24 divisors (see below), whose sum is σ = 247635180. Its totient is φ = 30478128.

The previous prime is 91434451. The next prime is 91434493. The reversal of 91434456 is 65443419.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 91434456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91434451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 634890 + ... + 635033.

Almost surely, 2^91434456 is an apocalyptic number.

It is an amenable number.

91434456 is an abundant number, since it is smaller than the sum of its proper divisors (156200724).

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

91434456 is a wasteful number, since it uses less digits than its factorization.

91434456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269935 (or 1269928 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 91434456 is about 9562.1365813295. The cubic root of 91434456 is about 450.5088170540.

The spelling of 91434456 in words is "ninety-one million, four hundred thirty-four thousand, four hundred fifty-six".