677020890 has 64 divisors (see below), whose sum is σ = 1999823616. Its totient is φ = 142843392.

The previous prime is 677020889. The next prime is 677020919. The reversal of 677020890 is 98020776.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121267 + ... + 126726.

It is an arithmetic number, because the mean of its divisors is an integer number (31247244).

Almost surely, 2^677020890 is an apocalyptic number.

677020890 is an abundant number, since it is smaller than the sum of its proper divisors (1322802726).

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

677020890 is a wasteful number, since it uses less digits than its factorization.

677020890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248023.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 677020890 is about 26019.6250933790. The cubic root of 677020890 is about 878.0798741855.

The spelling of 677020890 in words is "six hundred seventy-seven million, twenty thousand, eight hundred ninety".