28864354 has 4 divisors (see below), whose sum is σ = 43296534. Its totient is φ = 14432176.

The previous prime is 28864349. The next prime is 28864361. The reversal of 28864354 is 45346882.

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., 20025625 + 8838729 = 4475^2 + 2973^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7216087 + ... + 7216090.

Almost surely, 2^28864354 is an apocalyptic number.

28864354 is a deficient number, since it is larger than the sum of its proper divisors (14432180).

28864354 is a wasteful number, since it uses less digits than its factorization.

28864354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14432179.

The product of its digits is 184320, while the sum is 40.

The square root of 28864354 is about 5372.5556302378. Note that the first 3 decimals coincide. The cubic root of 28864354 is about 306.7519136565.

The spelling of 28864354 in words is "twenty-eight million, eight hundred sixty-four thousand, three hundred fifty-four".