804397401 has 12 divisors (see below), whose sum is σ = 1162475028. Its totient is φ = 536002944.

The previous prime is 804397387. The next prime is 804397441. The reversal of 804397401 is 104793408.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 306215001 + 498182400 = 17499^2 + 22320^2 .

It is not a de Polignac number, because 804397401 - 2⁵ = 804397369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (804397441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1380 + ... + 40133.

It is an arithmetic number, because the mean of its divisors is an integer number (96872919).

Almost surely, 2^804397401 is an apocalyptic number.

It is an amenable number.

804397401 is a deficient number, since it is larger than the sum of its proper divisors (358077627).

804397401 is a wasteful number, since it uses less digits than its factorization.

804397401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43672 (or 43669 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 804397401 is about 28361.9005181247. The cubic root of 804397401 is about 930.0155703255.

The spelling of 804397401 in words is "eight hundred four million, three hundred ninety-seven thousand, four hundred one".