28866346 has 4 divisors (see below), whose sum is σ = 43299522. Its totient is φ = 14433172.

The previous prime is 28866329. The next prime is 28866371. The reversal of 28866346 is 64366882.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28740321 + 126025 = 5361^2 + 355^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7216585 + ... + 7216588.

Almost surely, 2^28866346 is an apocalyptic number.

28866346 is a deficient number, since it is larger than the sum of its proper divisors (14433176).

28866346 is a wasteful number, since it uses less digits than its factorization.

28866346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14433175.

The product of its digits is 331776, while the sum is 43.

The square root of 28866346 is about 5372.7410136726. The cubic root of 28866346 is about 306.7589700620.

The spelling of 28866346 in words is "twenty-eight million, eight hundred sixty-six thousand, three hundred forty-six".