73687565 has 8 divisors (see below), whose sum is σ = 101057280. Its totient is φ = 50528592.

The previous prime is 73687553. The next prime is 73687577. The reversal of 73687565 is 56578637.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (73687553) and next prime (73687577).

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

It is a cyclic number.

It is not a de Polignac number, because 73687565 - 2⁶ = 73687501 is a prime.

It is a congruent number.

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, 1052645 + ... + 1052714.

It is an arithmetic number, because the mean of its divisors is an integer number (12632160).

Almost surely, 2^73687565 is an apocalyptic number.

It is an amenable number.

73687565 is a deficient number, since it is larger than the sum of its proper divisors (27369715).

73687565 is a wasteful number, since it uses less digits than its factorization.

73687565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105371.

The product of its digits is 1058400, while the sum is 47.

The square root of 73687565 is about 8584.1461427448. The cubic root of 73687565 is about 419.2419527489.

The spelling of 73687565 in words is "seventy-three million, six hundred eighty-seven thousand, five hundred sixty-five".