80353645 has 16 divisors (see below), whose sum is σ = 104591088. Its totient is φ = 59023360.

The previous prime is 80353639. The next prime is 80353649. The reversal of 80353645 is 54635308.

It can be written as a sum of positive squares in 8 ways, for example, as 537289 + 79816356 = 733^2 + 8934^2 .

It is not a de Polignac number, because 80353645 - 2⁷ = 80353517 is a prime.

It is a super-3 number, since 3×80353645³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80353645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80353649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8044 + ... + 15013.

It is an arithmetic number, because the mean of its divisors is an integer number (6536943).

Almost surely, 2^80353645 is an apocalyptic number.

80353645 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

80353645 is a deficient number, since it is larger than the sum of its proper divisors (24237443).

80353645 is a wasteful number, since it uses less digits than its factorization.

80353645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23120.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 80353645 is about 8964.0194667348. The cubic root of 80353645 is about 431.5209256081.

The spelling of 80353645 in words is "eighty million, three hundred fifty-three thousand, six hundred forty-five".