28876378 has 8 divisors (see below), whose sum is σ = 43554420. Its totient is φ = 14358240.

The previous prime is 28876357. The next prime is 28876381. The reversal of 28876378 is 87367882.

It can be written as a sum of positive squares in 2 ways, for example, as 28697449 + 178929 = 5357^2 + 423^2 .

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

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, 39523 + ... + 40246.

Almost surely, 2^28876378 is an apocalyptic number.

28876378 is a deficient number, since it is larger than the sum of its proper divisors (14678042).

28876378 is a wasteful number, since it uses less digits than its factorization.

28876378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79952.

The product of its digits is 903168, while the sum is 49.

The square root of 28876378 is about 5373.6745342456. The cubic root of 28876378 is about 306.7945022068.

The spelling of 28876378 in words is "twenty-eight million, eight hundred seventy-six thousand, three hundred seventy-eight".