80567449 has 2 divisors, whose sum is σ = 80567450. Its totient is φ = 80567448.

The previous prime is 80567411. The next prime is 80567453. The reversal of 80567449 is 94476508.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76737600 + 3829849 = 8760^2 + 1957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80567449 is a prime.

It is a super-2 number, since 2×80567449² = 12982227676735202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80567549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40283724 + 40283725.

It is an arithmetic number, because the mean of its divisors is an integer number (40283725).

Almost surely, 2^80567449 is an apocalyptic number.

It is an amenable number.

80567449 is a deficient number, since it is larger than the sum of its proper divisors (1).

80567449 is an equidigital number, since it uses as much as digits as its factorization.

80567449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 80567449 is about 8975.9372212600. The cubic root of 80567449 is about 431.9033151970.

The spelling of 80567449 in words is "eighty million, five hundred sixty-seven thousand, four hundred forty-nine".