71900383 has 4 divisors (see below), whose sum is σ = 73257048. Its totient is φ = 70543720.

The previous prime is 71900371. The next prime is 71900393. The reversal of 71900383 is 38300917.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71900383 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71900303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678253 + ... + 678358.

It is an arithmetic number, because the mean of its divisors is an integer number (18314262).

Almost surely, 2^71900383 is an apocalyptic number.

71900383 is a deficient number, since it is larger than the sum of its proper divisors (1356665).

71900383 is a wasteful number, since it uses less digits than its factorization.

71900383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356664.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 71900383 is about 8479.4093544303. The cubic root of 71900383 is about 415.8248133626.

The spelling of 71900383 in words is "seventy-one million, nine hundred thousand, three hundred eighty-three".