28849534 has 12 divisors (see below), whose sum is σ = 50339664. Its totient is φ = 12364044.

The previous prime is 28849531. The next prime is 28849537. The reversal of 28849534 is 43594882.

It is an interprime number because it is at equal distance from previous prime (28849531) and next prime (28849537).

It is a super-2 number, since 2×28849534² = 1664591224034312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28849531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147094 + ... + 147289.

It is an arithmetic number, because the mean of its divisors is an integer number (4194972).

Almost surely, 2^28849534 is an apocalyptic number.

28849534 is a deficient number, since it is larger than the sum of its proper divisors (21490130).

28849534 is a wasteful number, since it uses less digits than its factorization.

28849534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294399 (or 294392 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 28849534 is about 5371.1762212759. The cubic root of 28849534 is about 306.6994055050.

The spelling of 28849534 in words is "twenty-eight million, eight hundred forty-nine thousand, five hundred thirty-four".