949131887 has 4 divisors (see below), whose sum is σ = 1035416616. Its totient is φ = 862847160.

The previous prime is 949131877. The next prime is 949131941. The reversal of 949131887 is 788131949.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788131949 = 11 ⋅71648359.

It is a cyclic number.

It is not a de Polignac number, because 949131887 - 2¹⁰ = 949130863 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 (949131877) 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, 43142348 + ... + 43142369.

It is an arithmetic number, because the mean of its divisors is an integer number (258854154).

Almost surely, 2^949131887 is an apocalyptic number.

949131887 is a deficient number, since it is larger than the sum of its proper divisors (86284729).

949131887 is a wasteful number, since it uses less digits than its factorization.

949131887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86284728.

The product of its digits is 435456, while the sum is 50.

The square root of 949131887 is about 30807.9841437248. The cubic root of 949131887 is about 982.7480439109.

The spelling of 949131887 in words is "nine hundred forty-nine million, one hundred thirty-one thousand, eight hundred eighty-seven".