12492691 has 2 divisors, whose sum is σ = 12492692. Its totient is φ = 12492690.

The previous prime is 12492679. The next prime is 12492713. The reversal of 12492691 is 19629421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12492691 - 2¹³ = 12484499 is a prime.

It is the 3535-th Hogben number.

It is not a weakly prime, because it can be changed into another prime (12492631) by changing a digit.

It is a nontrivial repunit in base 3534.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6246345 + 6246346.

It is an arithmetic number, because the mean of its divisors is an integer number (6246346).

Almost surely, 2^12492691 is an apocalyptic number.

12492691 is a deficient number, since it is larger than the sum of its proper divisors (1).

12492691 is an equidigital number, since it uses as much as digits as its factorization.

12492691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 34.

The square root of 12492691 is about 3534.5001060970. The cubic root of 12492691 is about 232.0341990310.

The spelling of 12492691 in words is "twelve million, four hundred ninety-two thousand, six hundred ninety-one".