977487 has 16 divisors (see below), whose sum is σ = 1509120. Its totient is φ = 551232.

The previous prime is 977447. The next prime is 977507. The reversal of 977487 is 784779.

It is not a de Polignac number, because 977487 - 2⁷ = 977359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1608 + ... + 2130.

It is an arithmetic number, because the mean of its divisors is an integer number (94320).

2⁹⁷⁷⁴⁸⁷ is an apocalyptic number.

977487 is a deficient number, since it is larger than the sum of its proper divisors (531633).

977487 is a wasteful number, since it uses less digits than its factorization.

977487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622.

The product of its digits is 98784, while the sum is 42.

The square root of 977487 is about 988.6794222598. The cubic root of 977487 is about 99.2438636555.

The spelling of 977487 in words is "nine hundred seventy-seven thousand, four hundred eighty-seven".