73667138 has 16 divisors (see below), whose sum is σ = 114441336. Its totient is φ = 35543040.

The previous prime is 73667117. The next prime is 73667141. The reversal of 73667138 is 83176637.

It can be written as a sum of positive squares in 4 ways, for example, as 59552089 + 14115049 = 7717^2 + 3757^2 .

It is a super-2 number, since 2×73667138² = 10853694442222088, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 73667095 and 73667104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770 + ... + 12162.

Almost surely, 2^73667138 is an apocalyptic number.

73667138 is a deficient number, since it is larger than the sum of its proper divisors (40774198).

73667138 is a wasteful number, since it uses less digits than its factorization.

73667138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11509.

The product of its digits is 127008, while the sum is 41.

The square root of 73667138 is about 8582.9562506167. The cubic root of 73667138 is about 419.2032096818.

The spelling of 73667138 in words is "seventy-three million, six hundred sixty-seven thousand, one hundred thirty-eight".