91646463 has 16 divisors (see below), whose sum is σ = 125058816. Its totient is φ = 59682240.

The previous prime is 91646449. The next prime is 91646497. The reversal of 91646463 is 36464619.

It is not a de Polignac number, because 91646463 - 2¹² = 91642367 is a prime.

It is a super-4 number, since 4×91646463⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91646563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21478 + ... + 25388.

It is an arithmetic number, because the mean of its divisors is an integer number (7816176).

Almost surely, 2^91646463 is an apocalyptic number.

91646463 is a deficient number, since it is larger than the sum of its proper divisors (33412353).

91646463 is a wasteful number, since it uses less digits than its factorization.

91646463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094.

The product of its digits is 93312, while the sum is 39.

The square root of 91646463 is about 9573.2159173394. The cubic root of 91646463 is about 450.8567431428.

The spelling of 91646463 in words is "ninety-one million, six hundred forty-six thousand, four hundred sixty-three".