71738406 has 32 divisors (see below), whose sum is σ = 160598880. Its totient is φ = 23735808.

The previous prime is 71738383. The next prime is 71738417. The reversal of 71738406 is 60483717.

It is a Curzon number.

It is a congruent number.

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, 2550 + ... + 12246.

It is an arithmetic number, because the mean of its divisors is an integer number (5018715).

Almost surely, 2^71738406 is an apocalyptic number.

71738406 is an abundant number, since it is smaller than the sum of its proper divisors (88860474).

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

71738406 is a wasteful number, since it uses less digits than its factorization.

71738406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9845 (or 9839 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 71738406 is about 8469.8527732187. The cubic root of 71738406 is about 415.5123222245.

The spelling of 71738406 in words is "seventy-one million, seven hundred thirty-eight thousand, four hundred six".