71289074 has 8 divisors (see below), whose sum is σ = 107401260. Its totient is φ = 35488656.

The previous prime is 71289067. The next prime is 71289103. The reversal of 71289074 is 47098217.

It can be written as a sum of positive squares in 2 ways, for example, as 62331025 + 8958049 = 7895^2 + 2993^2 .

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

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, 77369 + ... + 78284.

Almost surely, 2^71289074 is an apocalyptic number.

71289074 is a deficient number, since it is larger than the sum of its proper divisors (36112186).

71289074 is a wasteful number, since it uses less digits than its factorization.

71289074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155884.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 71289074 is about 8443.2857348310. The cubic root of 71289074 is about 414.6429871003.

The spelling of 71289074 in words is "seventy-one million, two hundred eighty-nine thousand, seventy-four".