687014780 has 12 divisors (see below), whose sum is σ = 1442731080. Its totient is φ = 274805904.

The previous prime is 687014773. The next prime is 687014803. The reversal of 687014780 is 87410786.

687014780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17175350 + ... + 17175389.

It is an arithmetic number, because the mean of its divisors is an integer number (120227590).

Almost surely, 2^687014780 is an apocalyptic number.

It is an amenable number.

687014780 is an abundant number, since it is smaller than the sum of its proper divisors (755716300).

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

687014780 is a wasteful number, since it uses less digits than its factorization.

687014780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34350748 (or 34350746 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 687014780 is about 26210.9667887318. The cubic root of 687014780 is about 882.3793991317.

The spelling of 687014780 in words is "six hundred eighty-seven million, fourteen thousand, seven hundred eighty".