28586423 has 2 divisors, whose sum is σ = 28586424. Its totient is φ = 28586422.

The previous prime is 28586419. The next prime is 28586429. The reversal of 28586423 is 32468582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28586423 - 2² = 28586419 is a prime.

It is a Sophie Germain prime.

It is equal to p_1775657 and since 28586423 and 1775657 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28586429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14293211 + 14293212.

It is an arithmetic number, because the mean of its divisors is an integer number (14293212).

Almost surely, 2^28586423 is an apocalyptic number.

28586423 is a deficient number, since it is larger than the sum of its proper divisors (1).

28586423 is an equidigital number, since it uses as much as digits as its factorization.

28586423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 38.

The square root of 28586423 is about 5346.6272546345. The cubic root of 28586423 is about 305.7641788830.

The spelling of 28586423 in words is "twenty-eight million, five hundred eighty-six thousand, four hundred twenty-three".