23947906 has 8 divisors (see below), whose sum is σ = 35989884. Its totient is φ = 11951280.

The previous prime is 23947901. The next prime is 23947919. The reversal of 23947906 is 60974932.

It can be written as a sum of positive squares in 2 ways, for example, as 23863225 + 84681 = 4885^2 + 291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (23947901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9985 + ... + 12148.

Almost surely, 2^23947906 is an apocalyptic number.

23947906 is a deficient number, since it is larger than the sum of its proper divisors (12041978).

23947906 is a wasteful number, since it uses less digits than its factorization.

23947906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22676.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 23947906 is about 4893.6597756689. The cubic root of 23947906 is about 288.2410613525.

The spelling of 23947906 in words is "twenty-three million, nine hundred forty-seven thousand, nine hundred six".