73577081 has 2 divisors, whose sum is σ = 73577082. Its totient is φ = 73577080.

The previous prime is 73577047. The next prime is 73577099. The reversal of 73577081 is 18077537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71910400 + 1666681 = 8480^2 + 1291^2 .

It is a cyclic number.

It is not a de Polignac number, because 73577081 - 2¹⁸ = 73314937 is a prime.

It is a super-2 number, since 2×73577081² = 10827173696961122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73577011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36788540 + 36788541.

It is an arithmetic number, because the mean of its divisors is an integer number (36788541).

Almost surely, 2^73577081 is an apocalyptic number.

It is an amenable number.

73577081 is a deficient number, since it is larger than the sum of its proper divisors (1).

73577081 is an equidigital number, since it uses as much as digits as its factorization.

73577081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41160, while the sum is 38.

The square root of 73577081 is about 8577.7083769501. The cubic root of 73577081 is about 419.0323167583.

The spelling of 73577081 in words is "seventy-three million, five hundred seventy-seven thousand, eighty-one".