91046623 has 2 divisors, whose sum is σ = 91046624. Its totient is φ = 91046622.

The previous prime is 91046591. The next prime is 91046629. The reversal of 91046623 is 32664019.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91046623 - 2⁵ = 91046591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91046629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45523311 + 45523312.

It is an arithmetic number, because the mean of its divisors is an integer number (45523312).

Almost surely, 2^91046623 is an apocalyptic number.

91046623 is a deficient number, since it is larger than the sum of its proper divisors (1).

91046623 is an equidigital number, since it uses as much as digits as its factorization.

91046623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 91046623 is about 9541.8354104438. The cubic root of 91046623 is about 449.8709473555.

The spelling of 91046623 in words is "ninety-one million, forty-six thousand, six hundred twenty-three".