128894097 has 8 divisors (see below), whose sum is σ = 173527744. Its totient is φ = 85094928.

The previous prime is 128894083. The next prime is 128894099. The reversal of 128894097 is 790498821.

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

It is not a de Polignac number, because 128894097 - 2⁶ = 128894033 is a prime.

It is a super-2 number, since 2×128894097² = 33227376482890818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128894099) 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, 208258 + ... + 208875.

It is an arithmetic number, because the mean of its divisors is an integer number (21690968).

Almost surely, 2^128894097 is an apocalyptic number.

It is an amenable number.

128894097 is a deficient number, since it is larger than the sum of its proper divisors (44633647).

128894097 is a wasteful number, since it uses less digits than its factorization.

128894097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417239.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 128894097 is about 11353.1536147451. The cubic root of 128894097 is about 505.1391271084.

The spelling of 128894097 in words is "one hundred twenty-eight million, eight hundred ninety-four thousand, ninety-seven".