4727958891 has 4 divisors (see below), whose sum is σ = 6303945192. Its totient is φ = 3151972592.

The previous prime is 4727958887. The next prime is 4727958931. The reversal of 4727958891 is 1988597274.

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

It is a cyclic number.

It is not a de Polignac number, because 4727958891 - 2² = 4727958887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4727958811) 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, 787993146 + ... + 787993151.

It is an arithmetic number, because the mean of its divisors is an integer number (1575986298).

Almost surely, 2^4727958891 is an apocalyptic number.

4727958891 is a deficient number, since it is larger than the sum of its proper divisors (1575986301).

4727958891 is a wasteful number, since it uses less digits than its factorization.

4727958891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575986300.

The product of its digits is 10160640, while the sum is 60.

The square root of 4727958891 is about 68760.1548209426. The cubic root of 4727958891 is about 1678.3836129037.

The spelling of 4727958891 in words is "four billion, seven hundred twenty-seven million, nine hundred fifty-eight thousand, eight hundred ninety-one".