80201939 has 2 divisors, whose sum is σ = 80201940. Its totient is φ = 80201938.

The previous prime is 80201921. The next prime is 80201941. The reversal of 80201939 is 93910208.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80201939 - 2⁸ = 80201683 is a prime.

It is a Sophie Germain prime.

Together with 80201941, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_4680437 and since 80201939 and 4680437 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (80201909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40100969 + 40100970.

It is an arithmetic number, because the mean of its divisors is an integer number (40100970).

Almost surely, 2^80201939 is an apocalyptic number.

80201939 is a deficient number, since it is larger than the sum of its proper divisors (1).

80201939 is an equidigital number, since it uses as much as digits as its factorization.

80201939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 80201939 is about 8955.5535283979. The cubic root of 80201939 is about 431.2491870320.

The spelling of 80201939 in words is "eighty million, two hundred one thousand, nine hundred thirty-nine".