91276463 has 4 divisors (see below), whose sum is σ = 91307328. Its totient is φ = 91245600.

The previous prime is 91276459. The next prime is 91276483. The reversal of 91276463 is 36467219.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36467219 = 787 ⋅46337.

It is a cyclic number.

It is not a de Polignac number, because 91276463 - 2² = 91276459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91276433) 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, 10463 + ... + 17088.

It is an arithmetic number, because the mean of its divisors is an integer number (22826832).

Almost surely, 2^91276463 is an apocalyptic number.

91276463 is a deficient number, since it is larger than the sum of its proper divisors (30865).

91276463 is a wasteful number, since it uses less digits than its factorization.

91276463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30864.

The product of its digits is 54432, while the sum is 38.

The square root of 91276463 is about 9553.8716235880. The cubic root of 91276463 is about 450.2491838017.

The spelling of 91276463 in words is "ninety-one million, two hundred seventy-six thousand, four hundred sixty-three".