71705742 has 8 divisors (see below), whose sum is σ = 143411496. Its totient is φ = 23901912.

The previous prime is 71705737. The next prime is 71705747. The reversal of 71705742 is 24750717.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71705737) and next prime (71705747).

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

71705742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71705747) 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, 5975473 + ... + 5975484.

It is an arithmetic number, because the mean of its divisors is an integer number (17926437).

Almost surely, 2^71705742 is an apocalyptic number.

71705742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71705742 is a wasteful number, since it uses less digits than its factorization.

71705742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11950962.

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 71705742 is about 8467.9243029210. The cubic root of 71705742 is about 415.4492488272.

The spelling of 71705742 in words is "seventy-one million, seven hundred five thousand, seven hundred forty-two".