23906349 has 6 divisors (see below), whose sum is σ = 34531406. Its totient is φ = 15937560.

The previous prime is 23906347. The next prime is 23906357. The reversal of 23906349 is 94360932.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15350724 + 8555625 = 3918^2 + 2925^2 .

It is not a de Polignac number, because 23906349 - 2¹ = 23906347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23906341) 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, 1328122 + ... + 1328139.

Almost surely, 2^23906349 is an apocalyptic number.

It is an amenable number.

23906349 is a deficient number, since it is larger than the sum of its proper divisors (10625057).

23906349 is a wasteful number, since it uses less digits than its factorization.

23906349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656267 (or 2656264 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 23906349 is about 4889.4119278294. The cubic root of 23906349 is about 288.0742357821.

The spelling of 23906349 in words is "twenty-three million, nine hundred six thousand, three hundred forty-nine".