80038661 has 2 divisors, whose sum is σ = 80038662. Its totient is φ = 80038660.

The previous prime is 80038631. The next prime is 80038709. The reversal of 80038661 is 16683008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72165025 + 7873636 = 8495^2 + 2806^2 .

It is a cyclic number.

It is not a de Polignac number, because 80038661 - 2¹⁰ = 80037637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80038631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40019330 + 40019331.

It is an arithmetic number, because the mean of its divisors is an integer number (40019331).

Almost surely, 2^80038661 is an apocalyptic number.

It is an amenable number.

80038661 is a deficient number, since it is larger than the sum of its proper divisors (1).

80038661 is an equidigital number, since it uses as much as digits as its factorization.

80038661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 80038661 is about 8946.4328645556. The cubic root of 80038661 is about 430.9563373278.

The spelling of 80038661 in words is "eighty million, thirty-eight thousand, six hundred sixty-one".