28480713 has 16 divisors (see below), whose sum is σ = 39161280. Its totient is φ = 18398016.

The previous prime is 28480679. The next prime is 28480721. The reversal of 28480713 is 31708482.

It is a de Polignac number, because none of the positive numbers 2^k-28480713 is a prime.

It is a super-2 number, since 2×28480713² = 1622302025976738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28480733) 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, 41731 + ... + 42407.

It is an arithmetic number, because the mean of its divisors is an integer number (2447580).

Almost surely, 2^28480713 is an apocalyptic number.

It is an amenable number.

28480713 is a deficient number, since it is larger than the sum of its proper divisors (10680567).

28480713 is a wasteful number, since it uses less digits than its factorization.

28480713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 28480713 is about 5336.7324272442. The cubic root of 28480713 is about 305.3868172816.

The spelling of 28480713 in words is "twenty-eight million, four hundred eighty thousand, seven hundred thirteen".