80629072 has 20 divisors (see below), whose sum is σ = 157127220. Its totient is φ = 40080128.

The previous prime is 80629069. The next prime is 80629093. The reversal of 80629072 is 27092608.

It can be written as a sum of positive squares in 2 ways, for example, as 49224256 + 31404816 = 7016^2 + 5604^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11797 + ... + 17332.

It is an arithmetic number, because the mean of its divisors is an integer number (7856361).

Almost surely, 2^80629072 is an apocalyptic number.

It is an amenable number.

80629072 is a deficient number, since it is larger than the sum of its proper divisors (76498148).

80629072 is a wasteful number, since it uses less digits than its factorization.

80629072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29310 (or 29304 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 80629072 is about 8979.3692428812. The cubic root of 80629072 is about 432.0134026477.

The spelling of 80629072 in words is "eighty million, six hundred twenty-nine thousand, seventy-two".