28993674 has 16 divisors (see below), whose sum is σ = 58089312. Its totient is φ = 9647568.

The previous prime is 28993637. The next prime is 28993693. The reversal of 28993674 is 47639982.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264 + ... + 7619.

It is an arithmetic number, because the mean of its divisors is an integer number (3630582).

Almost surely, 2^28993674 is an apocalyptic number.

28993674 is an abundant number, since it is smaller than the sum of its proper divisors (29095638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28993674 is a wasteful number, since it uses less digits than its factorization.

28993674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8501.

The product of its digits is 653184, while the sum is 48.

The square root of 28993674 is about 5384.5774207453. The cubic root of 28993674 is about 307.2093413162.

It can be divided in two parts, 28 and 993674, that multiplied together give a palindrome (27822872).

The spelling of 28993674 in words is "twenty-eight million, nine hundred ninety-three thousand, six hundred seventy-four".