71734742 has 8 divisors (see below), whose sum is σ = 108898776. Its totient is φ = 35435152.

The previous prime is 71734739. The next prime is 71734757. The reversal of 71734742 is 24743717.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215903 + ... + 216234.

It is an arithmetic number, because the mean of its divisors is an integer number (13612347).

Almost surely, 2^71734742 is an apocalyptic number.

71734742 is a deficient number, since it is larger than the sum of its proper divisors (37164034).

71734742 is a wasteful number, since it uses less digits than its factorization.

71734742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432222.

The product of its digits is 32928, while the sum is 35.

The square root of 71734742 is about 8469.6364738990. The cubic root of 71734742 is about 415.5052480822.

Subtracting from 71734742 its reverse (24743717), we obtain a square (46991025 = 6855²).

The spelling of 71734742 in words is "seventy-one million, seven hundred thirty-four thousand, seven hundred forty-two".