23347638 has 12 divisors (see below), whose sum is σ = 50586588. Its totient is φ = 7782540.

The previous prime is 23347633. The next prime is 23347661. The reversal of 23347638 is 83674332.

It is a super-2 number, since 2×23347638² = 1090224400358088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23347633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 648528 + ... + 648563.

It is an arithmetic number, because the mean of its divisors is an integer number (4215549).

Almost surely, 2^23347638 is an apocalyptic number.

23347638 is an abundant number, since it is smaller than the sum of its proper divisors (27238950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23347638 is a wasteful number, since it uses less digits than its factorization.

23347638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297099 (or 1297096 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 23347638 is about 4831.9393622023. The cubic root of 23347638 is about 285.8123453174.

The spelling of 23347638 in words is "twenty-three million, three hundred forty-seven thousand, six hundred thirty-eight".