71963718 has 32 divisors (see below), whose sum is σ = 148218336. Its totient is φ = 23282688.

The previous prime is 71963641. The next prime is 71963719. The reversal of 71963718 is 81736917.

It is a self number, because there is not a number n which added to its sum of digits gives 71963718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71963719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29680 + ... + 32012.

It is an arithmetic number, because the mean of its divisors is an integer number (4631823).

Almost surely, 2^71963718 is an apocalyptic number.

71963718 is an abundant number, since it is smaller than the sum of its proper divisors (76254618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71963718 is a wasteful number, since it uses less digits than its factorization.

71963718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488.

The product of its digits is 63504, while the sum is 42.

The square root of 71963718 is about 8483.1431674822. The cubic root of 71963718 is about 415.9468736089.

The spelling of 71963718 in words is "seventy-one million, nine hundred sixty-three thousand, seven hundred eighteen".