677469 has 16 divisors (see below), whose sum is σ = 1008000. Its totient is φ = 401856.

The previous prime is 677461. The next prime is 677471. The reversal of 677469 is 964776.

It is not a de Polignac number, because 677469 - 2³ = 677461 is a prime.

It is a super-2 number, since 2×677469² = 917928491922, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 677469.

It is not an unprimeable number, because it can be changed into a prime (677461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832 + ... + 1430.

It is an arithmetic number, because the mean of its divisors is an integer number (63000).

2⁶⁷⁷⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

677469 is a deficient number, since it is larger than the sum of its proper divisors (330531).

677469 is a wasteful number, since it uses less digits than its factorization.

677469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644.

The product of its digits is 63504, while the sum is 39.

The square root of 677469 is about 823.0850502834. The cubic root of 677469 is about 87.8273560770.

677469 divided by its sum of digits (39) gives a palindrome (17371).

The spelling of 677469 in words is "six hundred seventy-seven thousand, four hundred sixty-nine".