71897794 has 16 divisors (see below), whose sum is σ = 115263648. Its totient is φ = 33516352.

The previous prime is 71897789. The next prime is 71897797. The reversal of 71897794 is 49779817.

It is not an unprimeable number, because it can be changed into a prime (71897797) 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, 6244 + ... + 13519.

It is an arithmetic number, because the mean of its divisors is an integer number (7203978).

Almost surely, 2^71897794 is an apocalyptic number.

71897794 is a deficient number, since it is larger than the sum of its proper divisors (43365854).

71897794 is a wasteful number, since it uses less digits than its factorization.

71897794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19889.

The product of its digits is 889056, while the sum is 52.

The square root of 71897794 is about 8479.2566891208. The cubic root of 71897794 is about 415.8198222748.

The spelling of 71897794 in words is "seventy-one million, eight hundred ninety-seven thousand, seven hundred ninety-four".