71297734 has 4 divisors (see below), whose sum is σ = 106946604. Its totient is φ = 35648866.

The previous prime is 71297719. The next prime is 71297761. The reversal of 71297734 is 43779217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43779217 = 167 ⋅262151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17824432 + ... + 17824435.

It is an arithmetic number, because the mean of its divisors is an integer number (26736651).

Almost surely, 2^71297734 is an apocalyptic number.

71297734 is a deficient number, since it is larger than the sum of its proper divisors (35648870).

71297734 is a wasteful number, since it uses less digits than its factorization.

71297734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35648869.

The product of its digits is 74088, while the sum is 40.

The square root of 71297734 is about 8443.7985527842. The cubic root of 71297734 is about 414.6597763158.

The spelling of 71297734 in words is "seventy-one million, two hundred ninety-seven thousand, seven hundred thirty-four".