28870083 has 48 divisors (see below), whose sum is σ = 49121280. Its totient is φ = 16156800.

The previous prime is 28870069. The next prime is 28870103. The reversal of 28870083 is 38007882.

It is not a de Polignac number, because 28870083 - 2¹⁰ = 28869059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28870033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70383 + ... + 70791.

It is an arithmetic number, because the mean of its divisors is an integer number (1023360).

Almost surely, 2^28870083 is an apocalyptic number.

28870083 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28870083 is a deficient number, since it is larger than the sum of its proper divisors (20251197).

28870083 is a wasteful number, since it uses less digits than its factorization.

28870083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 28870083 is about 5373.0887764860. The cubic root of 28870083 is about 306.7722070312.

The spelling of 28870083 in words is "twenty-eight million, eight hundred seventy thousand, eighty-three".