23087779 has 8 divisors (see below), whose sum is σ = 27124272. Its totient is φ = 19374240.

The previous prime is 23087773. The next prime is 23087789. The reversal of 23087779 is 97778032.

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 23087779 - 2⁵ = 23087747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23087773) 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, 80584 + ... + 80869.

It is an arithmetic number, because the mean of its divisors is an integer number (3390534).

Almost surely, 2^23087779 is an apocalyptic number.

23087779 is a deficient number, since it is larger than the sum of its proper divisors (4036493).

23087779 is a wasteful number, since it uses less digits than its factorization.

23087779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161477.

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 23087779 is about 4804.9744015967. The cubic root of 23087779 is about 284.7480239269.

The spelling of 23087779 in words is "twenty-three million, eighty-seven thousand, seven hundred seventy-nine".