80850730 has 8 divisors (see below), whose sum is σ = 145531332. Its totient is φ = 32340288.

The previous prime is 80850703. The next prime is 80850739. The reversal of 80850730 is 3705808.

It can be written as a sum of positive squares in 2 ways, for example, as 76685049 + 4165681 = 8757^2 + 2041^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 80850692 and 80850701.

It is not an unprimeable number, because it can be changed into a prime (80850739) 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, 4042527 + ... + 4042546.

Almost surely, 2^80850730 is an apocalyptic number.

80850730 is a deficient number, since it is larger than the sum of its proper divisors (64680602).

80850730 is a wasteful number, since it uses less digits than its factorization.

80850730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8085080.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 80850730 is about 8991.7033981332. The cubic root of 80850730 is about 432.4089242109.

The spelling of 80850730 in words is "eighty million, eight hundred fifty thousand, seven hundred thirty".