961672887 has 18 divisors (see below), whose sum is σ = 1587929928. Its totient is φ = 549386712.

The previous prime is 961672867. The next prime is 961672889. The reversal of 961672887 is 788276169.

It is not a de Polignac number, because 961672887 - 2⁶ = 961672823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961672889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 244188 + ... + 248094.

Almost surely, 2^961672887 is an apocalyptic number.

961672887 is a deficient number, since it is larger than the sum of its proper divisors (626257041).

961672887 is an frugal number, since it uses more digits than its factorization.

961672887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7827 (or 3917 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 961672887 is about 31010.8511169881. The cubic root of 961672887 is about 987.0575102836.

The spelling of 961672887 in words is "nine hundred sixty-one million, six hundred seventy-two thousand, eight hundred eighty-seven".