71687342 has 8 divisors (see below), whose sum is σ = 113190600. Its totient is φ = 33957144.

The previous prime is 71687339. The next prime is 71687377. The reversal of 71687342 is 24378617.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 1886509 = 71687342 / (7 + 1 + 6 + 8 + 7 + 3 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 71687296 and 71687305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943217 + ... + 943292.

It is an arithmetic number, because the mean of its divisors is an integer number (14148825).

Almost surely, 2^71687342 is an apocalyptic number.

71687342 is a deficient number, since it is larger than the sum of its proper divisors (41503258).

71687342 is a wasteful number, since it uses less digits than its factorization.

71687342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886530.

The product of its digits is 56448, while the sum is 38.

The square root of 71687342 is about 8466.8377804231. The cubic root of 71687342 is about 415.4137104361.

The spelling of 71687342 in words is "seventy-one million, six hundred eighty-seven thousand, three hundred forty-two".