80737813 has 8 divisors (see below), whose sum is σ = 87762528. Its totient is φ = 73829424.

The previous prime is 80737759. The next prime is 80737817. The reversal of 80737813 is 31873708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80737813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80737817) 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, 27631 + ... + 30412.

It is an arithmetic number, because the mean of its divisors is an integer number (10970316).

Almost surely, 2^80737813 is an apocalyptic number.

It is an amenable number.

80737813 is a deficient number, since it is larger than the sum of its proper divisors (7024715).

80737813 is a wasteful number, since it uses less digits than its factorization.

80737813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58163.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 80737813 is about 8985.4222493993. The cubic root of 80737813 is about 432.2075281047.

The spelling of 80737813 in words is "eighty million, seven hundred thirty-seven thousand, eight hundred thirteen".