28078527 has 16 divisors (see below), whose sum is σ = 38487680. Its totient is φ = 18198432.

The previous prime is 28078487. The next prime is 28078541. The reversal of 28078527 is 72587082.

It is not a de Polignac number, because 28078527 - 2²³ = 19689919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28078027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39249 + ... + 39957.

It is an arithmetic number, because the mean of its divisors is an integer number (2405480).

Almost surely, 2^28078527 is an apocalyptic number.

28078527 is a deficient number, since it is larger than the sum of its proper divisors (10409153).

28078527 is a wasteful number, since it uses less digits than its factorization.

28078527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 28078527 is about 5298.9175309680. The cubic root of 28078527 is about 303.9425062960.

The spelling of 28078527 in words is "twenty-eight million, seventy-eight thousand, five hundred twenty-seven".