677994 has 32 divisors (see below), whose sum is σ = 1503360. Its totient is φ = 203456.

The previous prime is 677983. The next prime is 678023. The reversal of 677994 is 499776.

It is a d-powerful number, because it can be written as 6⁷ + 7⁵ + 9³ + 7⁶ + 9³ + 4⁹ .

It is a Curzon 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, 29467 + ... + 29489.

It is an arithmetic number, because the mean of its divisors is an integer number (46980).

2⁶⁷⁷⁹⁹⁴ is an apocalyptic number.

677994 is an abundant number, since it is smaller than the sum of its proper divisors (825366).

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

677994 is a wasteful number, since it uses less digits than its factorization.

677994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 45 counting only the distinct ones).

The product of its digits is 95256, while the sum is 42.

The square root of 677994 is about 823.4039106052. The cubic root of 677994 is about 87.8500372902.

The spelling of 677994 in words is "six hundred seventy-seven thousand, nine hundred ninety-four".