23087861 has 8 divisors (see below), whose sum is σ = 23913120. Its totient is φ = 22275792.

The previous prime is 23087849. The next prime is 23087863. The reversal of 23087861 is 16878032.

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

It is a cyclic number.

It is not a de Polignac number, because 23087861 - 2¹⁰ = 23086837 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 (23087863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335 + ... + 6803.

It is an arithmetic number, because the mean of its divisors is an integer number (2989140).

Almost surely, 2^23087861 is an apocalyptic number.

It is an amenable number.

23087861 is a deficient number, since it is larger than the sum of its proper divisors (825259).

23087861 is an equidigital number, since it uses as much as digits as its factorization.

23087861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6595.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 23087861 is about 4804.9829344130. The cubic root of 23087861 is about 284.7483610361.

The spelling of 23087861 in words is "twenty-three million, eighty-seven thousand, eight hundred sixty-one".