91458946 has 16 divisors (see below), whose sum is σ = 148803480. Its totient is φ = 41989120.

The previous prime is 91458919. The next prime is 91459001. The reversal of 91458946 is 64985419.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 83923921 + 7535025 = 9161^2 + 2745^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91458896 and 91458905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31411 + ... + 34198.

Almost surely, 2^91458946 is an apocalyptic number.

91458946 is a deficient number, since it is larger than the sum of its proper divisors (57344534).

91458946 is a wasteful number, since it uses less digits than its factorization.

91458946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65669.

The product of its digits is 311040, while the sum is 46.

The square root of 91458946 is about 9563.4170671366. The cubic root of 91458946 is about 450.5490352114.

The spelling of 91458946 in words is "ninety-one million, four hundred fifty-eight thousand, nine hundred forty-six".