28739167 has 8 divisors (see below), whose sum is σ = 30412800. Its totient is φ = 27100920.

The previous prime is 28739147. The next prime is 28739209. The reversal of 28739167 is 76193782.

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 28739167 - 2¹⁵ = 28706399 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 (28739107) 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, 7167 + ... + 10432.

It is an arithmetic number, because the mean of its divisors is an integer number (3801600).

Almost surely, 2^28739167 is an apocalyptic number.

28739167 is a deficient number, since it is larger than the sum of its proper divisors (1673633).

28739167 is a wasteful number, since it uses less digits than its factorization.

28739167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17693.

The product of its digits is 127008, while the sum is 43.

The square root of 28739167 is about 5360.8923697459. The cubic root of 28739167 is about 306.3078018344.

The spelling of 28739167 in words is "twenty-eight million, seven hundred thirty-nine thousand, one hundred sixty-seven".