71730374 has 4 divisors (see below), whose sum is σ = 107595564. Its totient is φ = 35865186.

The previous prime is 71730331. The next prime is 71730391. The reversal of 71730374 is 47303717.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71730374.

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, 17932592 + ... + 17932595.

It is an arithmetic number, because the mean of its divisors is an integer number (26898891).

Almost surely, 2^71730374 is an apocalyptic number.

71730374 is a deficient number, since it is larger than the sum of its proper divisors (35865190).

71730374 is a wasteful number, since it uses less digits than its factorization.

71730374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35865189.

The product of its (nonzero) digits is 12348, while the sum is 32.

The square root of 71730374 is about 8469.3786076666. The cubic root of 71730374 is about 415.4968144013.

The spelling of 71730374 in words is "seventy-one million, seven hundred thirty thousand, three hundred seventy-four".