91314077 has 2 divisors, whose sum is σ = 91314078. Its totient is φ = 91314076.

The previous prime is 91314073. The next prime is 91314109. The reversal of 91314077 is 77041319.

It is an a-pointer prime, because the next prime (91314109) can be obtained adding 91314077 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64336441 + 26977636 = 8021^2 + 5194^2 .

It is a cyclic number.

It is not a de Polignac number, because 91314077 - 2² = 91314073 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91314073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45657038 + 45657039.

It is an arithmetic number, because the mean of its divisors is an integer number (45657039).

Almost surely, 2^91314077 is an apocalyptic number.

It is an amenable number.

91314077 is a deficient number, since it is larger than the sum of its proper divisors (1).

91314077 is an equidigital number, since it uses as much as digits as its factorization.

91314077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 91314077 is about 9555.8399421506. The cubic root of 91314077 is about 450.3110228434.

The spelling of 91314077 in words is "ninety-one million, three hundred fourteen thousand, seventy-seven".