654321010 has 24 divisors (see below), whose sum is σ = 1370069100. Its totient is φ = 224338464.

The previous prime is 654321001. The next prime is 654321023. The reversal of 654321010 is 10123456.

654321010 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 634687249 + 19633761 = 25193^2 + 4431^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 667185 + ... + 668164.

Almost surely, 2^654321010 is an apocalyptic number.

654321010 is an abundant number, since it is smaller than the sum of its proper divisors (715748090).

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

654321010 is a wasteful number, since it uses less digits than its factorization.

654321010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335370 (or 1335363 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 654321010 is about 25579.6991772773. The cubic root of 654321010 is about 868.1543690067.

Adding to 654321010 its reverse (10123456), we get a palindrome (664444466).

The spelling of 654321010 in words is "six hundred fifty-four million, three hundred twenty-one thousand, ten".