677487 has 4 divisors (see below), whose sum is σ = 903320. Its totient is φ = 451656.

The previous prime is 677473. The next prime is 677531. The reversal of 677487 is 784776.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 677487 - 2⁴ = 677471 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677447) 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, 112912 + ... + 112917.

It is an arithmetic number, because the mean of its divisors is an integer number (225830).

2⁶⁷⁷⁴⁸⁷ is an apocalyptic number.

677487 is a deficient number, since it is larger than the sum of its proper divisors (225833).

677487 is a wasteful number, since it uses less digits than its factorization.

677487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225832.

The product of its digits is 65856, while the sum is 39.

The square root of 677487 is about 823.0959846822. The cubic root of 677487 is about 87.8281339126.

The spelling of 677487 in words is "six hundred seventy-seven thousand, four hundred eighty-seven".