28613567 has 8 divisors (see below), whose sum is σ = 30517200. Its totient is φ = 26734464.

The previous prime is 28613561. The next prime is 28613569. The reversal of 28613567 is 76531682.

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 28613567 - 2⁴ = 28613551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28613567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28613561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3692 + ... + 8417.

It is an arithmetic number, because the mean of its divisors is an integer number (3814650).

Almost surely, 2^28613567 is an apocalyptic number.

28613567 is a deficient number, since it is larger than the sum of its proper divisors (1903633).

28613567 is a wasteful number, since it uses less digits than its factorization.

28613567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12265.

The product of its digits is 60480, while the sum is 38.

The square root of 28613567 is about 5349.1650750374. The cubic root of 28613567 is about 305.8609268776.

The spelling of 28613567 in words is "twenty-eight million, six hundred thirteen thousand, five hundred sixty-seven".