28625097 has 16 divisors (see below), whose sum is σ = 38880000. Its totient is φ = 18729984.

The previous prime is 28625081. The next prime is 28625111. The reversal of 28625097 is 79052682.

It is a happy number.

It is not a de Polignac number, because 28625097 - 2⁴ = 28625081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28625017) 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, 63529 + ... + 63977.

It is an arithmetic number, because the mean of its divisors is an integer number (2430000).

Almost surely, 2^28625097 is an apocalyptic number.

It is an amenable number.

28625097 is a deficient number, since it is larger than the sum of its proper divisors (10254903).

28625097 is a wasteful number, since it uses less digits than its factorization.

28625097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 28625097 is about 5350.2427047752. The cubic root of 28625097 is about 305.9020041623.

The spelling of 28625097 in words is "twenty-eight million, six hundred twenty-five thousand, ninety-seven".