687479070 has 16 divisors (see below), whose sum is σ = 1649949840. Its totient is φ = 183327744.

The previous prime is 687479057. The next prime is 687479077. The reversal of 687479070 is 70974786.

687479070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687479077) 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, 11457955 + ... + 11458014.

It is an arithmetic number, because the mean of its divisors is an integer number (103121865).

Almost surely, 2^687479070 is an apocalyptic number.

687479070 is an abundant number, since it is smaller than the sum of its proper divisors (962470770).

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

687479070 is a wasteful number, since it uses less digits than its factorization.

687479070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22915979.

The product of its (nonzero) digits is 592704, while the sum is 48.

The square root of 687479070 is about 26219.8220817762. The cubic root of 687479070 is about 882.5781273539.

The spelling of 687479070 in words is "six hundred eighty-seven million, four hundred seventy-nine thousand, seventy".