71961086 has 8 divisors (see below), whose sum is σ = 109010664. Its totient is φ = 35624200.

The previous prime is 71961079. The next prime is 71961103. The reversal of 71961086 is 68016917.

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, 177920 + ... + 178323.

It is an arithmetic number, because the mean of its divisors is an integer number (13626333).

Almost surely, 2^71961086 is an apocalyptic number.

71961086 is a deficient number, since it is larger than the sum of its proper divisors (37049578).

71961086 is a wasteful number, since it uses less digits than its factorization.

71961086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356346.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 71961086 is about 8482.9880348849. The cubic root of 71961086 is about 415.9418026020.

The spelling of 71961086 in words is "seventy-one million, nine hundred sixty-one thousand, eighty-six".