28670087023 has 4 divisors (see below), whose sum is σ = 28674979560. Its totient is φ = 28665194488.

The previous prime is 28670087021. The next prime is 28670087071. The reversal of 28670087023 is 32078007682.

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 28670087023 - 2¹ = 28670087021 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 (28670087021) 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, 2437468 + ... + 2449201.

It is an arithmetic number, because the mean of its divisors is an integer number (7168744890).

Almost surely, 2^28670087023 is an apocalyptic number.

28670087023 is a deficient number, since it is larger than the sum of its proper divisors (4892537).

28670087023 is an equidigital number, since it uses as much as digits as its factorization.

28670087023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4892536.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 28670087023 in words is "twenty-eight billion, six hundred seventy million, eighty-seven thousand, twenty-three".