80464645 has 4 divisors (see below), whose sum is σ = 96557580. Its totient is φ = 64371712.

The previous prime is 80464607. The next prime is 80464651. The reversal of 80464645 is 54646408.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15194404 + 65270241 = 3898^2 + 8079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80464645 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8046460 + ... + 8046469.

It is an arithmetic number, because the mean of its divisors is an integer number (24139395).

Almost surely, 2^80464645 is an apocalyptic number.

It is an amenable number.

80464645 is a deficient number, since it is larger than the sum of its proper divisors (16092935).

80464645 is a wasteful number, since it uses less digits than its factorization.

80464645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16092934.

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 80464645 is about 8970.2087489645. The cubic root of 80464645 is about 431.7195342460.

The spelling of 80464645 in words is "eighty million, four hundred sixty-four thousand, six hundred forty-five".