804744019 has 4 divisors (see below), whose sum is σ = 804910000. Its totient is φ = 804578040.

The previous prime is 804743999. The next prime is 804744037. The reversal of 804744019 is 910447408.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 804744019 - 2⁹ = 804743507 is a prime.

It is a super-2 number, since 2×804744019² = 1295225872232544722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (804744119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75492 + ... + 85489.

It is an arithmetic number, because the mean of its divisors is an integer number (201227500).

Almost surely, 2^804744019 is an apocalyptic number.

804744019 is a deficient number, since it is larger than the sum of its proper divisors (165981).

804744019 is a wasteful number, since it uses less digits than its factorization.

804744019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165980.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 804744019 is about 28368.0104871667. The cubic root of 804744019 is about 930.1491335972.

The spelling of 804744019 in words is "eight hundred four million, seven hundred forty-four thousand, nineteen".