23429691 has 6 divisors (see below), whose sum is σ = 33842900. Its totient is φ = 15619788.

The previous prime is 23429687. The next prime is 23429729. The reversal of 23429691 is 19692432.

It is not a de Polignac number, because 23429691 - 2² = 23429687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23429611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1301641 + ... + 1301658.

Almost surely, 2^23429691 is an apocalyptic number.

23429691 is a deficient number, since it is larger than the sum of its proper divisors (10413209).

23429691 is a wasteful number, since it uses less digits than its factorization.

23429691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603305 (or 2603302 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 23429691 is about 4840.4226055170. The cubic root of 23429691 is about 286.1467737353.

The spelling of 23429691 in words is "twenty-three million, four hundred twenty-nine thousand, six hundred ninety-one".