28714436 has 6 divisors (see below), whose sum is σ = 50250270. Its totient is φ = 14357216.

The previous prime is 28714423. The next prime is 28714457. The reversal of 28714436 is 63441782.

It can be written as a sum of positive squares in only one way, i.e., 27040000 + 1674436 = 5200^2 + 1294^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28714396 and 28714405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3589301 + ... + 3589308.

It is an arithmetic number, because the mean of its divisors is an integer number (8375045).

Almost surely, 2^28714436 is an apocalyptic number.

It is an amenable number.

28714436 is a deficient number, since it is larger than the sum of its proper divisors (21535834).

28714436 is a wasteful number, since it uses less digits than its factorization.

28714436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7178613 (or 7178611 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 28714436 is about 5358.5852610554. The cubic root of 28714436 is about 306.2199139679.

The spelling of 28714436 in words is "twenty-eight million, seven hundred fourteen thousand, four hundred thirty-six".