687335334 has 16 divisors (see below), whose sum is σ = 1571052288. Its totient is φ = 196381512.

The previous prime is 687335329. The next prime is 687335353. The reversal of 687335334 is 433533786.

It is a happy number.

It is a super-2 number, since 2×687335334² = 944859722729783112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 16365127 = 687335334 / (6 + 8 + 7 + 3 + 3 + 5 + 3 + 3 + 4).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8182522 + ... + 8182605.

It is an arithmetic number, because the mean of its divisors is an integer number (98190768).

Almost surely, 2^687335334 is an apocalyptic number.

687335334 is an abundant number, since it is smaller than the sum of its proper divisors (883716954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

687335334 is a wasteful number, since it uses less digits than its factorization.

687335334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16365139.

The product of its digits is 544320, while the sum is 42.

The square root of 687335334 is about 26217.0809587948. The cubic root of 687335334 is about 882.5166141640.

The spelling of 687335334 in words is "six hundred eighty-seven million, three hundred thirty-five thousand, three hundred thirty-four".