73688887 has 2 divisors, whose sum is σ = 73688888. Its totient is φ = 73688886.

The previous prime is 73688873. The next prime is 73688929. The reversal of 73688887 is 78888637.

It is a weak prime.

It is an emirp because it is prime and its reverse (78888637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73688887 - 2¹¹ = 73686839 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73688807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36844443 + 36844444.

It is an arithmetic number, because the mean of its divisors is an integer number (36844444).

Almost surely, 2^73688887 is an apocalyptic number.

73688887 is a deficient number, since it is larger than the sum of its proper divisors (1).

73688887 is an equidigital number, since it uses as much as digits as its factorization.

73688887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3612672, while the sum is 55.

The square root of 73688887 is about 8584.2231448163. The cubic root of 73688887 is about 419.2444598863.

The spelling of 73688887 in words is "seventy-three million, six hundred eighty-eight thousand, eight hundred eighty-seven".