28771119 has 40 divisors (see below), whose sum is σ = 46957680. Its totient is φ = 17449344.

The previous prime is 28771109. The next prime is 28771121. The reversal of 28771119 is 91117782.

It is not a de Polignac number, because 28771119 - 2¹⁵ = 28738351 is a prime.

It is a super-2 number, since 2×28771119² = 1655554577024322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28771109) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 93564 + ... + 93870.

It is an arithmetic number, because the mean of its divisors is an integer number (1173942).

Almost surely, 2^28771119 is an apocalyptic number.

28771119 is a deficient number, since it is larger than the sum of its proper divisors (18186561).

28771119 is a wasteful number, since it uses less digits than its factorization.

28771119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 412 counting only the distinct ones).

The product of its digits is 7056, while the sum is 36.

The square root of 28771119 is about 5363.8716427595. The cubic root of 28771119 is about 306.4212767313.

The spelling of 28771119 in words is "twenty-eight million, seven hundred seventy-one thousand, one hundred nineteen".