91403701 has 2 divisors, whose sum is σ = 91403702. Its totient is φ = 91403700.

The previous prime is 91403657. The next prime is 91403707. The reversal of 91403701 is 10730419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88341201 + 3062500 = 9399^2 + 1750^2 .

It is a cyclic number.

It is not a de Polignac number, because 91403701 - 2¹⁵ = 91370933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91403707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45701850 + 45701851.

It is an arithmetic number, because the mean of its divisors is an integer number (45701851).

Almost surely, 2^91403701 is an apocalyptic number.

It is an amenable number.

91403701 is a deficient number, since it is larger than the sum of its proper divisors (1).

91403701 is an equidigital number, since it uses as much as digits as its factorization.

91403701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 91403701 is about 9560.5282803828. The cubic root of 91403701 is about 450.4583001663.

The spelling of 91403701 in words is "ninety-one million, four hundred three thousand, seven hundred one".