28766002 has 4 divisors (see below), whose sum is σ = 43149006. Its totient is φ = 14383000.

The previous prime is 28765993. The next prime is 28766041. The reversal of 28766002 is 20066782.

It is a happy number.

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., 24393721 + 4372281 = 4939^2 + 2091^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7191499 + ... + 7191502.

Almost surely, 2^28766002 is an apocalyptic number.

28766002 is a deficient number, since it is larger than the sum of its proper divisors (14383004).

28766002 is a wasteful number, since it uses less digits than its factorization.

28766002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14383003.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 28766002 is about 5363.3946339981. The cubic root of 28766002 is about 306.4031097790.

The spelling of 28766002 in words is "twenty-eight million, seven hundred sixty-six thousand, two".