684551010 has 64 divisors (see below), whose sum is σ = 1930158720. Its totient is φ = 153185280.

The previous prime is 684551009. The next prime is 684551017. The reversal of 684551010 is 10155486.

684551010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×684551010² = 937220170584040200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (684551017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75495 + ... + 84074.

It is an arithmetic number, because the mean of its divisors is an integer number (30158730).

Almost surely, 2^684551010 is an apocalyptic number.

684551010 is an abundant number, since it is smaller than the sum of its proper divisors (1245607710).

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

684551010 is a wasteful number, since it uses less digits than its factorization.

684551010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159603.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 684551010 is about 26163.9257375494. The cubic root of 684551010 is about 881.3233404080.

The spelling of 684551010 in words is "six hundred eighty-four million, five hundred fifty-one thousand, ten".