91402723 has 2 divisors, whose sum is σ = 91402724. Its totient is φ = 91402722.

The previous prime is 91402699. The next prime is 91402747. The reversal of 91402723 is 32720419.

It is a balanced prime because it is at equal distance from previous prime (91402699) and next prime (91402747).

It is a cyclic number.

It is not a de Polignac number, because 91402723 - 2⁹ = 91402211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91402691 and 91402700.

It is not a weakly prime, because it can be changed into another prime (91402783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45701361 + 45701362.

It is an arithmetic number, because the mean of its divisors is an integer number (45701362).

Almost surely, 2^91402723 is an apocalyptic number.

91402723 is a deficient number, since it is larger than the sum of its proper divisors (1).

91402723 is an equidigital number, since it uses as much as digits as its factorization.

91402723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 91402723 is about 9560.4771324448. The cubic root of 91402723 is about 450.4566935582.

The spelling of 91402723 in words is "ninety-one million, four hundred two thousand, seven hundred twenty-three".