69491 has 2 divisors, whose sum is σ = 69492. Its totient is φ = 69490.

The previous prime is 69481. The next prime is 69493. The reversal of 69491 is 19496.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69491 - 2⁶ = 69427 is a prime.

Together with 69493, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 69491.

It is not a weakly prime, because it can be changed into another prime (69493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34745 + 34746.

It is an arithmetic number, because the mean of its divisors is an integer number (34746).

2⁶⁹⁴⁹¹ is an apocalyptic number.

69491 is a deficient number, since it is larger than the sum of its proper divisors (1).

69491 is an equidigital number, since it uses as much as digits as its factorization.

69491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 29.

The square root of 69491 is about 263.6114565037. The cubic root of 69491 is about 41.1127177902.

The spelling of 69491 in words is "sixty-nine thousand, four hundred ninety-one".