91456 has 14 divisors (see below), whose sum is σ = 181610. Its totient is φ = 45696.

The previous prime is 91453. The next prime is 91457. The reversal of 91456 is 65419.

It can be written as a sum of positive squares in only one way, i.e., 57600 + 33856 = 240^2 + 184^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 91456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651 + ... + 778.

2⁹¹⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

91456 is a deficient number, since it is larger than the sum of its proper divisors (90154).

91456 is a wasteful number, since it uses less digits than its factorization.

91456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441 (or 1431 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 91456 is about 302.4169307430. The cubic root of 91456 is about 45.0544197588.

The spelling of 91456 in words is "ninety-one thousand, four hundred fifty-six".