28473766 has 8 divisors (see below), whose sum is σ = 44183520. Its totient is φ = 13745928.

The previous prime is 28473713. The next prime is 28473787. The reversal of 28473766 is 66737482.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245406 + ... + 245521.

It is an arithmetic number, because the mean of its divisors is an integer number (5522940).

Almost surely, 2^28473766 is an apocalyptic number.

28473766 is a deficient number, since it is larger than the sum of its proper divisors (15709754).

28473766 is a wasteful number, since it uses less digits than its factorization.

28473766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490958.

The product of its digits is 338688, while the sum is 43.

The square root of 28473766 is about 5336.0815211164. The cubic root of 28473766 is about 305.3619853338.

The spelling of 28473766 in words is "twenty-eight million, four hundred seventy-three thousand, seven hundred sixty-six".