73667897 has 2 divisors, whose sum is σ = 73667898. Its totient is φ = 73667896.

The previous prime is 73667887. The next prime is 73667899. The reversal of 73667897 is 79876637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44302336 + 29365561 = 6656^2 + 5419^2 .

It is a cyclic number.

It is not a de Polignac number, because 73667897 - 2⁶ = 73667833 is a prime.

Together with 73667899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73667899) 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, 36833948 + 36833949.

It is an arithmetic number, because the mean of its divisors is an integer number (36833949).

Almost surely, 2^73667897 is an apocalyptic number.

It is an amenable number.

73667897 is a deficient number, since it is larger than the sum of its proper divisors (1).

73667897 is an equidigital number, since it uses as much as digits as its factorization.

73667897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2667168, while the sum is 53.

The square root of 73667897 is about 8583.0004660375. Note that the first 3 decimals coincide. The cubic root of 73667897 is about 419.2046493746.

The spelling of 73667897 in words is "seventy-three million, six hundred sixty-seven thousand, eight hundred ninety-seven".