80357993 has 2 divisors, whose sum is σ = 80357994. Its totient is φ = 80357992.

The previous prime is 80357957. The next prime is 80358007. The reversal of 80357993 is 39975308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79798489 + 559504 = 8933^2 + 748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80357993 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (80357093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40178996 + 40178997.

It is an arithmetic number, because the mean of its divisors is an integer number (40178997).

Almost surely, 2^80357993 is an apocalyptic number.

It is an amenable number.

80357993 is a deficient number, since it is larger than the sum of its proper divisors (1).

80357993 is an equidigital number, since it uses as much as digits as its factorization.

80357993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 80357993 is about 8964.2619885856. The cubic root of 80357993 is about 431.5287087818.

The spelling of 80357993 in words is "eighty million, three hundred fifty-seven thousand, nine hundred ninety-three".