28662967 has 8 divisors (see below), whose sum is σ = 29422800. Its totient is φ = 27912384.

The previous prime is 28662947. The next prime is 28662973. The reversal of 28662967 is 76926682.

It is a happy number.

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 28662967 - 2¹⁹ = 28138679 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 (28662917) 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, 4203 + ... + 8659.

It is an arithmetic number, because the mean of its divisors is an integer number (3677850).

Almost surely, 2^28662967 is an apocalyptic number.

28662967 is a deficient number, since it is larger than the sum of its proper divisors (759833).

28662967 is a wasteful number, since it uses less digits than its factorization.

28662967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625.

The product of its digits is 435456, while the sum is 46.

The square root of 28662967 is about 5353.7806268094. The cubic root of 28662967 is about 306.0368439268.

The spelling of 28662967 in words is "twenty-eight million, six hundred sixty-two thousand, nine hundred sixty-seven".