71249996 has 12 divisors (see below), whose sum is σ = 124889520. Its totient is φ = 35567280.

The previous prime is 71249957. The next prime is 71249999. The reversal of 71249996 is 69994217.

It is a self number, because there is not a number n which added to its sum of digits gives 71249996.

It is not an unprimeable number, because it can be changed into a prime (71249999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11591 + ... + 16638.

It is an arithmetic number, because the mean of its divisors is an integer number (10407460).

Almost surely, 2^71249996 is an apocalyptic number.

It is an amenable number.

71249996 is a deficient number, since it is larger than the sum of its proper divisors (53639524).

71249996 is a wasteful number, since it uses less digits than its factorization.

71249996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28864 (or 28862 counting only the distinct ones).

The product of its digits is 244944, while the sum is 47.

The square root of 71249996 is about 8440.9712711275. The cubic root of 71249996 is about 414.5672093345.

The spelling of 71249996 in words is "seventy-one million, two hundred forty-nine thousand, nine hundred ninety-six".