91929107 has 2 divisors, whose sum is σ = 91929108. Its totient is φ = 91929106.

The previous prime is 91929041. The next prime is 91929109. The reversal of 91929107 is 70192919.

It is a strong prime.

It is an emirp because it is prime and its reverse (70192919) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91929107 - 2¹² = 91925011 is a prime.

Together with 91929109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (91929109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45964553 + 45964554.

It is an arithmetic number, because the mean of its divisors is an integer number (45964554).

Almost surely, 2^91929107 is an apocalyptic number.

91929107 is a deficient number, since it is larger than the sum of its proper divisors (1).

91929107 is an equidigital number, since it uses as much as digits as its factorization.

91929107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 38.

The square root of 91929107 is about 9587.9667813359. The cubic root of 91929107 is about 451.3197585543.

The spelling of 91929107 in words is "ninety-one million, nine hundred twenty-nine thousand, one hundred seven".