71963914 has 32 divisors (see below), whose sum is σ = 120294720. Its totient is φ = 32016000.

The previous prime is 71963891. The next prime is 71963921. The reversal of 71963914 is 41936917.

Its product of digits (40824) is a multiple of the sum of its prime divisors (486).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308742 + ... + 308974.

It is an arithmetic number, because the mean of its divisors is an integer number (3759210).

Almost surely, 2^71963914 is an apocalyptic number.

71963914 is a deficient number, since it is larger than the sum of its proper divisors (48330806).

71963914 is a wasteful number, since it uses less digits than its factorization.

71963914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486.

The product of its digits is 40824, while the sum is 40.

The square root of 71963914 is about 8483.1547197962. The cubic root of 71963914 is about 415.9472512321.

The spelling of 71963914 in words is "seventy-one million, nine hundred sixty-three thousand, nine hundred fourteen".