8074729 has 4 divisors (see below), whose sum is σ = 8695876. Its totient is φ = 7453584.

The previous prime is 8074723. The next prime is 8074739. The reversal of 8074729 is 9274708.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5184729 + 2890000 = 2277^2 + 1700^2 .

It is a cyclic number.

It is not a de Polignac number, because 8074729 - 2⁵ = 8074697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8074723) 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, 310554 + ... + 310579.

It is an arithmetic number, because the mean of its divisors is an integer number (2173969).

Almost surely, 2^8074729 is an apocalyptic number.

It is an amenable number.

8074729 is a deficient number, since it is larger than the sum of its proper divisors (621147).

8074729 is a wasteful number, since it uses less digits than its factorization.

8074729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621146.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 8074729 is about 2841.6067637870. The cubic root of 8074729 is about 200.6208126312.

The spelling of 8074729 in words is "eight million, seventy-four thousand, seven hundred twenty-nine".