73711669 has 4 divisors (see below), whose sum is σ = 74539980. Its totient is φ = 72883360.

The previous prime is 73711613. The next prime is 73711681. The reversal of 73711669 is 96611737.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52200625 + 21511044 = 7225^2 + 4638^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73711669 is a prime.

It is a super-2 number, since 2×73711669² = 10866820293531122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73712669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414022 + ... + 414199.

It is an arithmetic number, because the mean of its divisors is an integer number (18634995).

Almost surely, 2^73711669 is an apocalyptic number.

It is an amenable number.

73711669 is a deficient number, since it is larger than the sum of its proper divisors (828311).

73711669 is an equidigital number, since it uses as much as digits as its factorization.

73711669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828310.

The product of its digits is 47628, while the sum is 40.

The square root of 73711669 is about 8585.5500115019. The cubic root of 73711669 is about 419.2876606254.

The spelling of 73711669 in words is "seventy-three million, seven hundred eleven thousand, six hundred sixty-nine".