80358729 has 16 divisors (see below), whose sum is σ = 119738304. Its totient is φ = 47513600.

The previous prime is 80358703. The next prime is 80358737. The reversal of 80358729 is 92785308.

It is a cyclic number.

It is not a de Polignac number, because 80358729 - 2⁷ = 80358601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80358749) 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, 28344 + ... + 31049.

It is an arithmetic number, because the mean of its divisors is an integer number (7483644).

Almost surely, 2^80358729 is an apocalyptic number.

It is an amenable number.

80358729 is a deficient number, since it is larger than the sum of its proper divisors (39379575).

80358729 is a wasteful number, since it uses less digits than its factorization.

80358729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59448.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 80358729 is about 8964.3030403930. The cubic root of 80358729 is about 431.5300262370.

The spelling of 80358729 in words is "eighty million, three hundred fifty-eight thousand, seven hundred twenty-nine".