71069851 has 8 divisors (see below), whose sum is σ = 72951984. Its totient is φ = 69194880.

The previous prime is 71069837. The next prime is 71069857. The reversal of 71069851 is 15896017.

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

It is not a de Polignac number, because 71069851 - 2¹³ = 71061659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71069851.

It is not an unprimeable number, because it can be changed into a prime (71069857) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22591 + ... + 25543.

It is an arithmetic number, because the mean of its divisors is an integer number (9118998).

Almost surely, 2^71069851 is an apocalyptic number.

71069851 is a deficient number, since it is larger than the sum of its proper divisors (1882133).

71069851 is a wasteful number, since it uses less digits than its factorization.

71069851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3581.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 71069851 is about 8430.2936485036. The cubic root of 71069851 is about 414.2175239842.

The spelling of 71069851 in words is "seventy-one million, sixty-nine thousand, eight hundred fifty-one".