60711891 has 4 divisors (see below), whose sum is σ = 80949192. Its totient is φ = 40474592.

The previous prime is 60711883. The next prime is 60711899. The reversal of 60711891 is 19811706.

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

It is an interprime number because it is at equal distance from previous prime (60711883) and next prime (60711899).

It is a cyclic number.

It is not a de Polignac number, because 60711891 - 2³ = 60711883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (60711899) 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, 10118646 + ... + 10118651.

It is an arithmetic number, because the mean of its divisors is an integer number (20237298).

Almost surely, 2^60711891 is an apocalyptic number.

60711891 is a deficient number, since it is larger than the sum of its proper divisors (20237301).

60711891 is a wasteful number, since it uses less digits than its factorization.

60711891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20237300.

The product of its (nonzero) digits is 3024, while the sum is 33.

The square root of 60711891 is about 7791.7835570555. The cubic root of 60711891 is about 393.0289912507.

The spelling of 60711891 in words is "sixty million, seven hundred eleven thousand, eight hundred ninety-one".