71890541 has 8 divisors (see below), whose sum is σ = 72600000. Its totient is φ = 71184960.

The previous prime is 71890537. The next prime is 71890543. The reversal of 71890541 is 14509817.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71890541 - 2² = 71890537 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71890543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47210 + ... + 48708.

It is an arithmetic number, because the mean of its divisors is an integer number (9075000).

Almost surely, 2^71890541 is an apocalyptic number.

It is an amenable number.

71890541 is a deficient number, since it is larger than the sum of its proper divisors (709459).

71890541 is a wasteful number, since it uses less digits than its factorization.

71890541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 71890541 is about 8478.8289875430. The cubic root of 71890541 is about 415.8058392654.

The spelling of 71890541 in words is "seventy-one million, eight hundred ninety thousand, five hundred forty-one".