654377 has 4 divisors (see below), whose sum is σ = 656016. Its totient is φ = 652740.

The previous prime is 654371. The next prime is 654397. The reversal of 654377 is 773456.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 654377 - 2¹² = 650281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654371) 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 3 ways as a sum of consecutive naturals, for example, 218 + ... + 1164.

It is an arithmetic number, because the mean of its divisors is an integer number (164004).

2⁶⁵⁴³⁷⁷ is an apocalyptic number.

It is an amenable number.

654377 is a deficient number, since it is larger than the sum of its proper divisors (1639).

654377 is an equidigital number, since it uses as much as digits as its factorization.

654377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638.

The product of its digits is 17640, while the sum is 32.

The square root of 654377 is about 808.9357205613. The cubic root of 654377 is about 86.8179130847.

The spelling of 654377 in words is "six hundred fifty-four thousand, three hundred seventy-seven".