894128397 has 16 divisors (see below), whose sum is σ = 1200480000. Its totient is φ = 591945984.

The previous prime is 894128383. The next prime is 894128419. The reversal of 894128397 is 793821498.

It is not a de Polignac number, because 894128397 - 2²⁰ = 893079821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894128357) 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, 291729 + ... + 294777.

It is an arithmetic number, because the mean of its divisors is an integer number (75030000).

Almost surely, 2^894128397 is an apocalyptic number.

It is an amenable number.

894128397 is a deficient number, since it is larger than the sum of its proper divisors (306351603).

894128397 is a wasteful number, since it uses less digits than its factorization.

894128397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700.

The product of its digits is 870912, while the sum is 51.

The square root of 894128397 is about 29901.9798173967. The cubic root of 894128397 is about 963.3851833567.

The spelling of 894128397 in words is "eight hundred ninety-four million, one hundred twenty-eight thousand, three hundred ninety-seven".