804770421 has 16 divisors (see below), whose sum is σ = 1320649344. Its totient is φ = 424494144.

The previous prime is 804770411. The next prime is 804770453. The reversal of 804770421 is 124077408.

It is not a de Polignac number, because 804770421 - 2⁵ = 804770389 is a prime.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804770401) 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, 1473666 + ... + 1474211.

It is an arithmetic number, because the mean of its divisors is an integer number (82540584).

Almost surely, 2^804770421 is an apocalyptic number.

It is an amenable number.

804770421 is a deficient number, since it is larger than the sum of its proper divisors (515878923).

804770421 is a wasteful number, since it uses less digits than its factorization.

804770421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947900.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 804770421 is about 28368.4758314577. The cubic root of 804770421 is about 930.1593055808.

The spelling of 804770421 in words is "eight hundred four million, seven hundred seventy thousand, four hundred twenty-one".