804779001 has 12 divisors (see below), whose sum is σ = 1251878628. Its totient is φ = 495248544.

The previous prime is 804778999. The next prime is 804779021. The reversal of 804779001 is 100977408.

It can be written as a sum of positive squares in 2 ways, for example, as 32216976 + 772562025 = 5676^2 + 27795^2 .

It is not a de Polignac number, because 804779001 - 2¹ = 804778999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (804779021) 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, 3439110 + ... + 3439343.

It is an arithmetic number, because the mean of its divisors is an integer number (104323219).

Almost surely, 2^804779001 is an apocalyptic number.

It is an amenable number.

804779001 is a deficient number, since it is larger than the sum of its proper divisors (447099627).

804779001 is a wasteful number, since it uses less digits than its factorization.

804779001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6878472 (or 6878469 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 804779001 is about 28368.6270552524. The cubic root of 804779001 is about 930.1626111772.

The spelling of 804779001 in words is "eight hundred four million, seven hundred seventy-nine thousand, one".