804929407 has 2 divisors, whose sum is σ = 804929408. Its totient is φ = 804929406.

The previous prime is 804929399. The next prime is 804929417. The reversal of 804929407 is 704929408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 804929407 - 2³ = 804929399 is a prime.

It is a super-2 number, since 2×804929407² = 1295822700506743298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (804929417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402464703 + 402464704.

It is an arithmetic number, because the mean of its divisors is an integer number (402464704).

Almost surely, 2^804929407 is an apocalyptic number.

804929407 is a deficient number, since it is larger than the sum of its proper divisors (1).

804929407 is an equidigital number, since it uses as much as digits as its factorization.

804929407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 804929407 is about 28371.2778527863. The cubic root of 804929407 is about 930.2205539262.

Subtracting from 804929407 its reverse (704929408), we obtain a palindrome (99999999).

The spelling of 804929407 in words is "eight hundred four million, nine hundred twenty-nine thousand, four hundred seven".