28732361 has 8 divisors (see below), whose sum is σ = 33088704. Its totient is φ = 24438960.

The previous prime is 28732339. The next prime is 28732373. The reversal of 28732361 is 16323782.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28732361 - 2²² = 24538057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28732061) 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, 14750 + ... + 16583.

It is an arithmetic number, because the mean of its divisors is an integer number (4136088).

Almost surely, 2^28732361 is an apocalyptic number.

It is an amenable number.

28732361 is a deficient number, since it is larger than the sum of its proper divisors (4356343).

28732361 is a wasteful number, since it uses less digits than its factorization.

28732361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31471.

The product of its digits is 12096, while the sum is 32.

The square root of 28732361 is about 5360.2575497825. The cubic root of 28732361 is about 306.2836200214.

The spelling of 28732361 in words is "twenty-eight million, seven hundred thirty-two thousand, three hundred sixty-one".