80723270 has 16 divisors (see below), whose sum is σ = 149229648. Its totient is φ = 31416480.

The previous prime is 80723257. The next prime is 80723273. The reversal of 80723270 is 7232708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80723273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108716 + ... + 109455.

It is an arithmetic number, because the mean of its divisors is an integer number (9326853).

Almost surely, 2^80723270 is an apocalyptic number.

80723270 is a deficient number, since it is larger than the sum of its proper divisors (68506378).

80723270 is a wasteful number, since it uses less digits than its factorization.

80723270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218215.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 80723270 is about 8984.6129577183. The cubic root of 80723270 is about 432.1815759051.

Adding to 80723270 its reverse (7232708), we get a palindrome (87955978).

The spelling of 80723270 in words is "eighty million, seven hundred twenty-three thousand, two hundred seventy".