23039387 has 4 divisors (see below), whose sum is σ = 26330736. Its totient is φ = 19748040.

The previous prime is 23039383. The next prime is 23039411. The reversal of 23039387 is 78393032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23039387 - 2² = 23039383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23039383) 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, 1645664 + ... + 1645677.

It is an arithmetic number, because the mean of its divisors is an integer number (6582684).

Almost surely, 2^23039387 is an apocalyptic number.

23039387 is a deficient number, since it is larger than the sum of its proper divisors (3291349).

23039387 is an equidigital number, since it uses as much as digits as its factorization.

23039387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291348.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 23039387 is about 4799.9361454086. The cubic root of 23039387 is about 284.5489407540.

The spelling of 23039387 in words is "twenty-three million, thirty-nine thousand, three hundred eighty-seven".