73690 has 8 divisors (see below), whose sum is σ = 132660. Its totient is φ = 29472.

The previous prime is 73681. The next prime is 73693. The reversal of 73690 is 9637.

It can be written as a sum of positive squares in 2 ways, for example, as 71289 + 2401 = 267^2 + 49^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×73690² = 10860432200, which contains 22 as substring.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73693) 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 in 3 ways as a sum of consecutive naturals, for example, 3675 + ... + 3694.

2⁷³⁶⁹⁰ is an apocalyptic number.

73690 is a deficient number, since it is larger than the sum of its proper divisors (58970).

73690 is a wasteful number, since it uses less digits than its factorization.

73690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7376.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 73690 is about 271.4590208485. The cubic root of 73690 is about 41.9246570638.

The spelling of 73690 in words is "seventy-three thousand, six hundred ninety".