28539034 has 32 divisors (see below), whose sum is σ = 46126080. Its totient is φ = 13219200.

The previous prime is 28539031. The next prime is 28539037. The reversal of 28539034 is 43093582.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28539031) and next prime (28539037).

It is not an unprimeable number, because it can be changed into a prime (28539031) 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, 261772 + ... + 261880.

It is an arithmetic number, because the mean of its divisors is an integer number (1441440).

Almost surely, 2^28539034 is an apocalyptic number.

28539034 is the 3379-th heptagonal number.

28539034 is a deficient number, since it is larger than the sum of its proper divisors (17587046).

28539034 is a wasteful number, since it uses less digits than its factorization.

28539034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 28539034 is about 5342.1937441467. The cubic root of 28539034 is about 305.5951257526.

The spelling of 28539034 in words is "twenty-eight million, five hundred thirty-nine thousand, thirty-four".