80732870 has 8 divisors (see below), whose sum is σ = 145319184. Its totient is φ = 32293144.

The previous prime is 80732851. The next prime is 80732903. The reversal of 80732870 is 7823708.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80732870.

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, 4036634 + ... + 4036653.

It is an arithmetic number, because the mean of its divisors is an integer number (18164898).

Almost surely, 2^80732870 is an apocalyptic number.

80732870 is a deficient number, since it is larger than the sum of its proper divisors (64586314).

80732870 is a wasteful number, since it uses less digits than its factorization.

80732870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8073294.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 80732870 is about 8985.1471885551. The cubic root of 80732870 is about 432.1987075974.

The spelling of 80732870 in words is "eighty million, seven hundred thirty-two thousand, eight hundred seventy".