73667889 has 9 divisors (see below), whose sum is σ = 106446379. Its totient is φ = 49094760.

The previous prime is 73667887. The next prime is 73667897. The reversal of 73667889 is 98876637.

The square root of 73667889 is 8583.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 41177889 + 32490000 = 6417^2 + 5700^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 73667889 - 2¹ = 73667887 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73667887) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24319 + ... + 27179.

Almost surely, 2^73667889 is an apocalyptic number.

73667889 is the 8583-rd square number.

73667889 is the 4292-nd centered octagonal number.

It is an amenable number.

73667889 is a deficient number, since it is larger than the sum of its proper divisors (32778490).

73667889 is an frugal number, since it uses more digits than its factorization.

73667889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5728 (or 2864 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The cubic root of 73667889 is about 419.2046342000.

The spelling of 73667889 in words is "seventy-three million, six hundred sixty-seven thousand, eight hundred eighty-nine".