1968662087 has 8 divisors (see below), whose sum is σ = 2251487616. Its totient is φ = 1686233592.

The previous prime is 1968662081. The next prime is 1968662141. The reversal of 1968662087 is 7802668691.

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 1968662087 - 2⁸ = 1968661831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968662081) 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, 88553 + ... + 108530.

It is an arithmetic number, because the mean of its divisors is an integer number (281435952).

Almost surely, 2^1968662087 is an apocalyptic number.

1968662087 is a deficient number, since it is larger than the sum of its proper divisors (282825529).

1968662087 is a wasteful number, since it uses less digits than its factorization.

1968662087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198517.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 1968662087 is about 44369.6076949076. The cubic root of 1968662087 is about 1253.3058280535.

The spelling of 1968662087 in words is "one billion, nine hundred sixty-eight million, six hundred sixty-two thousand, eighty-seven".