71696642 has 16 divisors (see below), whose sum is σ = 111533760. Its totient is φ = 34525008.

The previous prime is 71696641. The next prime is 71696657. The reversal of 71696642 is 24669617.

It is a self number, because there is not a number n which added to its sum of digits gives 71696642.

It is not an unprimeable number, because it can be changed into a prime (71696641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25763 + ... + 28409.

It is an arithmetic number, because the mean of its divisors is an integer number (6970860).

Almost surely, 2^71696642 is an apocalyptic number.

71696642 is a deficient number, since it is larger than the sum of its proper divisors (39837118).

71696642 is a wasteful number, since it uses less digits than its factorization.

71696642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145.

The product of its digits is 108864, while the sum is 41.

The square root of 71696642 is about 8467.3869641112. The cubic root of 71696642 is about 415.4316735350.

The spelling of 71696642 in words is "seventy-one million, six hundred ninety-six thousand, six hundred forty-two".