80070813 has 12 divisors (see below), whose sum is σ = 115750908. Its totient is φ = 53337600.

The previous prime is 80070803. The next prime is 80070871. The reversal of 80070813 is 31807008.

It can be written as a sum of positive squares in 2 ways, for example, as 78375609 + 1695204 = 8853^2 + 1302^2 .

It is not a de Polignac number, because 80070813 - 2²¹ = 77973661 is a prime.

It is a super-2 number, since 2×80070813² = 12822670188961938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80070803) 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 11 ways as a sum of consecutive naturals, for example, 11631 + ... + 17187.

It is an arithmetic number, because the mean of its divisors is an integer number (9645909).

Almost surely, 2^80070813 is an apocalyptic number.

It is an amenable number.

80070813 is a deficient number, since it is larger than the sum of its proper divisors (35680095).

80070813 is a wasteful number, since it uses less digits than its factorization.

80070813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164 (or 7161 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 80070813 is about 8948.2296014351. The cubic root of 80070813 is about 431.0140354995.

The spelling of 80070813 in words is "eighty million, seventy thousand, eight hundred thirteen".