677421003 has 16 divisors (see below), whose sum is σ = 1086590720. Its totient is φ = 366723936.

The previous prime is 677420993. The next prime is 677421007. The reversal of 677421003 is 300124776.

677421003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 677421003 - 2⁸ = 677420747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677421007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 848500 + ... + 849297.

It is an arithmetic number, because the mean of its divisors is an integer number (67911920).

Almost surely, 2^677421003 is an apocalyptic number.

677421003 is a deficient number, since it is larger than the sum of its proper divisors (409169717).

677421003 is a wasteful number, since it uses less digits than its factorization.

677421003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697826.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 677421003 is about 26027.3126349994. The cubic root of 677421003 is about 878.2528191121.

Adding to 677421003 its reverse (300124776), we get a palindrome (977545779).

The spelling of 677421003 in words is "six hundred seventy-seven million, four hundred twenty-one thousand, three".