128574797 has 16 divisors (see below), whose sum is σ = 141068928. Its totient is φ = 116475840.

The previous prime is 128574781. The next prime is 128574799. The reversal of 128574797 is 797475821.

It is a happy number.

It is not a de Polignac number, because 128574797 - 2⁴ = 128574781 is a prime.

Its product of digits (987840) is a multiple of the sum of its prime divisors (980).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128574799) 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, 175043 + ... + 175775.

It is an arithmetic number, because the mean of its divisors is an integer number (8816808).

Almost surely, 2^128574797 is an apocalyptic number.

It is an amenable number.

128574797 is a deficient number, since it is larger than the sum of its proper divisors (12494131).

128574797 is a wasteful number, since it uses less digits than its factorization.

128574797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980.

The product of its digits is 987840, while the sum is 50.

The square root of 128574797 is about 11339.0827230425. The cubic root of 128574797 is about 504.7216673606.

The spelling of 128574797 in words is "one hundred twenty-eight million, five hundred seventy-four thousand, seven hundred ninety-seven".