91952879 has 2 divisors, whose sum is σ = 91952880. Its totient is φ = 91952878.

The previous prime is 91952849. The next prime is 91952921. The reversal of 91952879 is 97825919.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (97825919) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91952879 - 2¹⁶ = 91887343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91952849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45976439 + 45976440.

It is an arithmetic number, because the mean of its divisors is an integer number (45976440).

Almost surely, 2^91952879 is an apocalyptic number.

91952879 is a deficient number, since it is larger than the sum of its proper divisors (1).

91952879 is an equidigital number, since it uses as much as digits as its factorization.

91952879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 50.

The square root of 91952879 is about 9589.2063800922. The cubic root of 91952879 is about 451.3586575458.

The spelling of 91952879 in words is "ninety-one million, nine hundred fifty-two thousand, eight hundred seventy-nine".