80371649 has 2 divisors, whose sum is σ = 80371650. Its totient is φ = 80371648.

The previous prime is 80371633. The next prime is 80371667. The reversal of 80371649 is 94617308.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63888049 + 16483600 = 7993^2 + 4060^2 .

It is a cyclic number.

It is not a de Polignac number, because 80371649 - 2⁴ = 80371633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80371619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40185824 + 40185825.

It is an arithmetic number, because the mean of its divisors is an integer number (40185825).

Almost surely, 2^80371649 is an apocalyptic number.

It is an amenable number.

80371649 is a deficient number, since it is larger than the sum of its proper divisors (1).

80371649 is an equidigital number, since it uses as much as digits as its factorization.

80371649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 80371649 is about 8965.0236474869. The cubic root of 80371649 is about 431.5531519934.

The spelling of 80371649 in words is "eighty million, three hundred seventy-one thousand, six hundred forty-nine".