28550967 has 4 divisors (see below), whose sum is σ = 38067960. Its totient is φ = 19033976.

The previous prime is 28550959. The next prime is 28550971. The reversal of 28550967 is 76905582.

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 28550967 - 2³ = 28550959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28550947) 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, 4758492 + ... + 4758497.

It is an arithmetic number, because the mean of its divisors is an integer number (9516990).

Almost surely, 2^28550967 is an apocalyptic number.

28550967 is a deficient number, since it is larger than the sum of its proper divisors (9516993).

28550967 is an equidigital number, since it uses as much as digits as its factorization.

28550967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9516992.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 28550967 is about 5343.3104906977. The cubic root of 28550967 is about 305.6377125537.

The spelling of 28550967 in words is "twenty-eight million, five hundred fifty thousand, nine hundred sixty-seven".