28880714 has 4 divisors (see below), whose sum is σ = 43321074. Its totient is φ = 14440356.

The previous prime is 28880699. The next prime is 28880729. The reversal of 28880714 is 41708882.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (28880699) and next prime (28880729).

It can be written as a sum of positive squares in only one way, i.e., 22250089 + 6630625 = 4717^2 + 2575^2 .

It is a super-2 number, since 2×28880714² = 1668191282299592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7220177 + ... + 7220180.

Almost surely, 2^28880714 is an apocalyptic number.

28880714 is a deficient number, since it is larger than the sum of its proper divisors (14440360).

28880714 is a wasteful number, since it uses less digits than its factorization.

28880714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14440359.

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 28880714 is about 5374.0779674285. The cubic root of 28880714 is about 306.8098572533.

The spelling of 28880714 in words is "twenty-eight million, eight hundred eighty thousand, seven hundred fourteen".