80752690 has 16 divisors (see below), whose sum is σ = 145557720. Its totient is φ = 32256000.

The previous prime is 80752649. The next prime is 80752691. The reversal of 80752690 is 9625708.

80752690 is nontrivially palindromic in base 9.

It can be written as a sum of positive squares in 4 ways, for example, as 53158681 + 27594009 = 7291^2 + 5253^2 .

It is a super-2 number, since 2×80752690² = 13041993884472200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80752691) 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, 2440 + ... + 12940.

Almost surely, 2^80752690 is an apocalyptic number.

80752690 is a deficient number, since it is larger than the sum of its proper divisors (64805030).

80752690 is a wasteful number, since it uses less digits than its factorization.

80752690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11277.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 80752690 is about 8986.2500521630. The cubic root of 80752690 is about 432.2340731079.

The spelling of 80752690 in words is "eighty million, seven hundred fifty-two thousand, six hundred ninety".