677490 has 32 divisors (see below), whose sum is σ = 1774656. Its totient is φ = 164160.

The previous prime is 677473. The next prime is 677531. The reversal of 677490 is 94776.

677490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 697 + ... + 1356.

It is an arithmetic number, because the mean of its divisors is an integer number (55458).

2⁶⁷⁷⁴⁹⁰ is an apocalyptic number.

677490 is an abundant number, since it is smaller than the sum of its proper divisors (1097166).

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

677490 is a wasteful number, since it uses less digits than its factorization.

677490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 677490 is about 823.0978070679. The cubic root of 677490 is about 87.8282635505.

It can be divided in two parts, 67 and 7490, that added together give a palindrome (7557).

The spelling of 677490 in words is "six hundred seventy-seven thousand, four hundred ninety".