71705750 has 32 divisors (see below), whose sum is σ = 134918784. Its totient is φ = 28536000.

The previous prime is 71705747. The next prime is 71705797. The reversal of 71705750 is 5750717.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

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, 57635 + ... + 58865.

It is an arithmetic number, because the mean of its divisors is an integer number (4216212).

Almost surely, 2^71705750 is an apocalyptic number.

71705750 is a deficient number, since it is larger than the sum of its proper divisors (63213034).

71705750 is a wasteful number, since it uses less digits than its factorization.

71705750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 1471 counting only the distinct ones).

The product of its (nonzero) digits is 8575, while the sum is 32.

The square root of 71705750 is about 8467.9247752918. The cubic root of 71705750 is about 415.4492642774.

The spelling of 71705750 in words is "seventy-one million, seven hundred five thousand, seven hundred fifty".