804691047 has 16 divisors (see below), whose sum is σ = 1079416800. Its totient is φ = 533222400.

The previous prime is 804691007. The next prime is 804691081. The reversal of 804691047 is 740196408.

It is a happy number.

It is not a de Polignac number, because 804691047 - 2⁸ = 804690791 is a prime.

It is a super-2 number, since 2×804691047² = 1295055362243912418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 804690996 and 804691014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804691007) 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, 757897 + ... + 758957.

It is an arithmetic number, because the mean of its divisors is an integer number (67463550).

Almost surely, 2^804691047 is an apocalyptic number.

804691047 is a deficient number, since it is larger than the sum of its proper divisors (274725753).

804691047 is a wasteful number, since it uses less digits than its factorization.

804691047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 804691047 is about 28367.0768145045. The cubic root of 804691047 is about 930.1287242332.

The spelling of 804691047 in words is "eight hundred four million, six hundred ninety-one thousand, forty-seven".