73687141 has 4 divisors (see below), whose sum is σ = 80385984. Its totient is φ = 66988300.

The previous prime is 73687139. The next prime is 73687181. The reversal of 73687141 is 14178637.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14178637 = 11 ⋅1288967.

It is a cyclic number.

It is not a de Polignac number, because 73687141 - 2¹ = 73687139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73687141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73687181) 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, 3349405 + ... + 3349426.

It is an arithmetic number, because the mean of its divisors is an integer number (20096496).

Almost surely, 2^73687141 is an apocalyptic number.

It is an amenable number.

73687141 is a deficient number, since it is larger than the sum of its proper divisors (6698843).

73687141 is a wasteful number, since it uses less digits than its factorization.

73687141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6698842.

The product of its digits is 28224, while the sum is 37.

The square root of 73687141 is about 8584.1214460188. The cubic root of 73687141 is about 419.2411486379.

The spelling of 73687141 in words is "seventy-three million, six hundred eighty-seven thousand, one hundred forty-one".