28710104 has 8 divisors (see below), whose sum is σ = 53831460. Its totient is φ = 14355048.

The previous prime is 28710053. The next prime is 28710107. The reversal of 28710104 is 40101782.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 28710104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28710107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1794374 + ... + 1794389.

Almost surely, 2^28710104 is an apocalyptic number.

It is an amenable number.

28710104 is a deficient number, since it is larger than the sum of its proper divisors (25121356).

28710104 is a wasteful number, since it uses less digits than its factorization.

28710104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588769 (or 3588765 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 28710104 is about 5358.1810346423. The cubic root of 28710104 is about 306.2045139164.

Adding to 28710104 its reverse (40101782), we get a palindrome (68811886).

The spelling of 28710104 in words is "twenty-eight million, seven hundred ten thousand, one hundred four".