28619087 has 6 divisors (see below), whose sum is σ = 33291648. Its totient is φ = 24530604.

The previous prime is 28619053. The next prime is 28619113. The reversal of 28619087 is 78091682.

It is not a de Polignac number, because 28619087 - 2¹² = 28614991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28619387) 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, 291983 + ... + 292080.

It is an arithmetic number, because the mean of its divisors is an integer number (5548608).

Almost surely, 2^28619087 is an apocalyptic number.

28619087 is a deficient number, since it is larger than the sum of its proper divisors (4672561).

28619087 is an equidigital number, since it uses as much as digits as its factorization.

28619087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584077 (or 584070 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 28619087 is about 5349.6810185281. The cubic root of 28619087 is about 305.8805940488.

The spelling of 28619087 in words is "twenty-eight million, six hundred nineteen thousand, eighty-seven".