1067872687 has 8 divisors (see below), whose sum is σ = 1225491872. Its totient is φ = 911520000.

The previous prime is 1067872661. The next prime is 1067872699. The reversal of 1067872687 is 7862787601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1067872687 is a prime.

It is a super-2 number, since 2×1067872687² = 2280704151281199938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1067872607) 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, 314814 + ... + 318187.

It is an arithmetic number, because the mean of its divisors is an integer number (153186484).

Almost surely, 2^1067872687 is an apocalyptic number.

1067872687 is a deficient number, since it is larger than the sum of its proper divisors (157619185).

1067872687 is an equidigital number, since it uses as much as digits as its factorization.

1067872687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633249.

The product of its (nonzero) digits is 1580544, while the sum is 52.

The square root of 1067872687 is about 32678.3213614163. The cubic root of 1067872687 is about 1022.1308418029.

The spelling of 1067872687 in words is "one billion, sixty-seven million, eight hundred seventy-two thousand, six hundred eighty-seven".