91000363 has 2 divisors, whose sum is σ = 91000364. Its totient is φ = 91000362.

The previous prime is 91000339. The next prime is 91000373. The reversal of 91000363 is 36300019.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91000363 - 2⁵ = 91000331 is a prime.

It is a super-2 number, since 2×91000363² = 16562132132263538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (91000313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45500181 + 45500182.

It is an arithmetic number, because the mean of its divisors is an integer number (45500182).

Almost surely, 2^91000363 is an apocalyptic number.

91000363 is a deficient number, since it is larger than the sum of its proper divisors (1).

91000363 is an equidigital number, since it uses as much as digits as its factorization.

91000363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 91000363 is about 9539.4110405203. The cubic root of 91000363 is about 449.7947426047.

The spelling of 91000363 in words is "ninety-one million, three hundred sixty-three", and thus it is an aban number.