71917948 has 6 divisors (see below), whose sum is σ = 125856416. Its totient is φ = 35958972.

The previous prime is 71917927. The next prime is 71917981. The reversal of 71917948 is 84971917.

It is a junction number, because it is equal to n+sod(n) for n = 71917898 and 71917907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8989740 + ... + 8989747.

Almost surely, 2^71917948 is an apocalyptic number.

It is an amenable number.

71917948 is a deficient number, since it is larger than the sum of its proper divisors (53938468).

71917948 is a wasteful number, since it uses less digits than its factorization.

71917948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17979491 (or 17979489 counting only the distinct ones).

The product of its digits is 127008, while the sum is 46.

The square root of 71917948 is about 8480.4450354919. The cubic root of 71917948 is about 415.8586720980.

The spelling of 71917948 in words is "seventy-one million, nine hundred seventeen thousand, nine hundred forty-eight".