28010097 has 8 divisors (see below), whose sum is σ = 41496480. Its totient is φ = 18673380.

The previous prime is 28010089. The next prime is 28010107. The reversal of 28010097 is 79001082.

It is not a de Polignac number, because 28010097 - 2³ = 28010089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1037411 = 28010097 / (2 + 8 + 0 + 1 + 0 + 0 + 9 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 28010097.

It is not an unprimeable number, because it can be changed into a prime (28010497) 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, 518679 + ... + 518732.

It is an arithmetic number, because the mean of its divisors is an integer number (5187060).

Almost surely, 2^28010097 is an apocalyptic number.

28010097 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

28010097 is a deficient number, since it is larger than the sum of its proper divisors (13486383).

28010097 is a wasteful number, since it uses less digits than its factorization.

28010097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037420 (or 1037414 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 28010097 is about 5292.4566129540. The cubic root of 28010097 is about 303.6953933234.

The spelling of 28010097 in words is "twenty-eight million, ten thousand, ninety-seven".