687097 has 12 divisors (see below), whose sum is σ = 766480. Its totient is φ = 613872.

The previous prime is 687083. The next prime is 687101. The reversal of 687097 is 790786.

It is not a de Polignac number, because 687097 - 2⁷ = 686969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (687007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15958 + ... + 16000.

2⁶⁸⁷⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

687097 is a deficient number, since it is larger than the sum of its proper divisors (79383).

687097 is a wasteful number, since it uses less digits than its factorization.

687097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 687097 is about 828.9131438215. The cubic root of 687097 is about 88.2414597957.

The spelling of 687097 in words is "six hundred eighty-seven thousand, ninety-seven".