28837897 has 8 divisors (see below), whose sum is σ = 31505760. Its totient is φ = 26177760.

The previous prime is 28837873. The next prime is 28837901. The reversal of 28837897 is 79873882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28837897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28837817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8229 + ... + 11197.

It is an arithmetic number, because the mean of its divisors is an integer number (3938220).

Almost surely, 2^28837897 is an apocalyptic number.

It is an amenable number.

28837897 is a deficient number, since it is larger than the sum of its proper divisors (2667863).

28837897 is a wasteful number, since it uses less digits than its factorization.

28837897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863.

The product of its digits is 1354752, while the sum is 52.

The square root of 28837897 is about 5370.0928297377. The cubic root of 28837897 is about 306.6581623088.

The spelling of 28837897 in words is "twenty-eight million, eight hundred thirty-seven thousand, eight hundred ninety-seven".