12425691 has 16 divisors (see below), whose sum is σ = 17877024. Its totient is φ = 7647744.

The previous prime is 12425689. The next prime is 12425701. The reversal of 12425691 is 19652421.

12425691 is nontrivially palindromic in base 16.

It is not a de Polignac number, because 12425691 - 2¹ = 12425689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12425641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405 + ... + 5001.

It is an arithmetic number, because the mean of its divisors is an integer number (1117314).

Almost surely, 2^12425691 is an apocalyptic number.

12425691 is a deficient number, since it is larger than the sum of its proper divisors (5451333).

12425691 is a wasteful number, since it uses less digits than its factorization.

12425691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4670.

The product of its digits is 4320, while the sum is 30.

The square root of 12425691 is about 3525.0093616897. The cubic root of 12425691 is about 231.6186449354.

The spelling of 12425691 in words is "twelve million, four hundred twenty-five thousand, six hundred ninety-one".