28070343 has 24 divisors (see below), whose sum is σ = 46592000. Its totient is φ = 15952464.

The previous prime is 28070323. The next prime is 28070369. The reversal of 28070343 is 34307082.

It is not a de Polignac number, because 28070343 - 2⁹ = 28069831 is a prime.

It is a super-2 number, since 2×28070343² = 1575888312275298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28070303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11418 + ... + 13656.

Almost surely, 2^28070343 is an apocalyptic number.

28070343 is a deficient number, since it is larger than the sum of its proper divisors (18521657).

28070343 is a wasteful number, since it uses less digits than its factorization.

28070343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 28070343 is about 5298.1452414973. The cubic root of 28070343 is about 303.9129735599.

The spelling of 28070343 in words is "twenty-eight million, seventy thousand, three hundred forty-three".