28829474 has 4 divisors (see below), whose sum is σ = 43244214. Its totient is φ = 14414736.

The previous prime is 28829461. The next prime is 28829477. The reversal of 28829474 is 47492882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47492882 = 2 ⋅23746441.

It can be written as a sum of positive squares in only one way, i.e., 26988025 + 1841449 = 5195^2 + 1357^2 .

It is a super-2 number, since 2×28829474² = 1662277142233352, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28829477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7207367 + ... + 7207370.

Almost surely, 2^28829474 is an apocalyptic number.

28829474 is a deficient number, since it is larger than the sum of its proper divisors (14414740).

28829474 is a wasteful number, since it uses less digits than its factorization.

28829474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14414739.

The product of its digits is 258048, while the sum is 44.

The square root of 28829474 is about 5369.3085215882. The cubic root of 28829474 is about 306.6283030670.

The spelling of 28829474 in words is "twenty-eight million, eight hundred twenty-nine thousand, four hundred seventy-four".