28980213 has 16 divisors (see below), whose sum is σ = 40007616. Its totient is φ = 18645120.

The previous prime is 28980199. The next prime is 28980221. The reversal of 28980213 is 31208982.

It is not a de Polignac number, because 28980213 - 2⁸ = 28979957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28980013) 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, 13545 + ... + 15537.

It is an arithmetic number, because the mean of its divisors is an integer number (2500476).

Almost surely, 2^28980213 is an apocalyptic number.

It is an amenable number.

28980213 is a deficient number, since it is larger than the sum of its proper divisors (11027403).

28980213 is a wasteful number, since it uses less digits than its factorization.

28980213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 28980213 is about 5383.3273168181. The cubic root of 28980213 is about 307.1617908851.

The spelling of 28980213 in words is "twenty-eight million, nine hundred eighty thousand, two hundred thirteen".