71487734 has 8 divisors (see below), whose sum is σ = 108523800. Its totient is φ = 35313136.

The previous prime is 71487707. The next prime is 71487751. The reversal of 71487734 is 43778417.

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

It is a super-2 number, since 2×71487734² = 10220992224909512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71487691 and 71487700.

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, 215159 + ... + 215490.

It is an arithmetic number, because the mean of its divisors is an integer number (13565475).

Almost surely, 2^71487734 is an apocalyptic number.

71487734 is a deficient number, since it is larger than the sum of its proper divisors (37036066).

71487734 is a wasteful number, since it uses less digits than its factorization.

71487734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430734.

The product of its digits is 131712, while the sum is 41.

The square root of 71487734 is about 8455.0419277494. The cubic root of 71487734 is about 415.0277893038.

The spelling of 71487734 in words is "seventy-one million, four hundred eighty-seven thousand, seven hundred thirty-four".