677420 has 12 divisors (see below), whose sum is σ = 1422624. Its totient is φ = 270960.

The previous prime is 677387. The next prime is 677423. The reversal of 677420 is 24776.

It is a self number, because there is not a number n which added to its sum of digits gives 677420.

It is not an unprimeable number, because it can be changed into a prime (677423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16916 + ... + 16955.

It is an arithmetic number, because the mean of its divisors is an integer number (118552).

2⁶⁷⁷⁴²⁰ is an apocalyptic number.

It is an amenable number.

677420 is an abundant number, since it is smaller than the sum of its proper divisors (745204).

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

677420 is a wasteful number, since it uses less digits than its factorization.

677420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33880 (or 33878 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 677420 is about 823.0552836839. The cubic root of 677420 is about 87.8252385660.

The spelling of 677420 in words is "six hundred seventy-seven thousand, four hundred twenty".