1687006707 has 16 divisors (see below), whose sum is σ = 2264824320. Its totient is φ = 1116957600.

The previous prime is 1687006681. The next prime is 1687006733. The reversal of 1687006707 is 7076007861.

It is an interprime number because it is at equal distance from previous prime (1687006681) and next prime (1687006733).

It is not a de Polignac number, because 1687006707 - 2¹⁴ = 1686990323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1687006207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265969 + ... + 272237.

It is an arithmetic number, because the mean of its divisors is an integer number (141551520).

Almost surely, 2^1687006707 is an apocalyptic number.

1687006707 is a deficient number, since it is larger than the sum of its proper divisors (577817613).

1687006707 is a wasteful number, since it uses less digits than its factorization.

1687006707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6874.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 1687006707 is about 41073.1872028456. The cubic root of 1687006707 is about 1190.4347696960.

The spelling of 1687006707 in words is "one billion, six hundred eighty-seven million, six thousand, seven hundred seven".