91629311 has 2 divisors, whose sum is σ = 91629312. Its totient is φ = 91629310.

The previous prime is 91629287. The next prime is 91629313. The reversal of 91629311 is 11392619.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91629311 is a prime.

Together with 91629313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91629313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45814655 + 45814656.

It is an arithmetic number, because the mean of its divisors is an integer number (45814656).

Almost surely, 2^91629311 is an apocalyptic number.

91629311 is a deficient number, since it is larger than the sum of its proper divisors (1).

91629311 is an equidigital number, since it uses as much as digits as its factorization.

91629311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 32.

The square root of 91629311 is about 9572.3200427065. The cubic root of 91629311 is about 450.8286148438.

The spelling of 91629311 in words is "ninety-one million, six hundred twenty-nine thousand, three hundred eleven".