73667887 has 2 divisors, whose sum is σ = 73667888. Its totient is φ = 73667886.

The previous prime is 73667833. The next prime is 73667897. The reversal of 73667887 is 78876637.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73667887 - 2¹⁵ = 73635119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73667897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36833943 + 36833944.

It is an arithmetic number, because the mean of its divisors is an integer number (36833944).

Almost surely, 2^73667887 is an apocalyptic number.

73667887 is a deficient number, since it is larger than the sum of its proper divisors (1).

73667887 is an equidigital number, since it uses as much as digits as its factorization.

73667887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2370816, while the sum is 52.

The square root of 73667887 is about 8582.9998834906. Note that the first 3 decimals coincide. The cubic root of 73667887 is about 419.2046304064.

The spelling of 73667887 in words is "seventy-three million, six hundred sixty-seven thousand, eight hundred eighty-seven".