477649 has 4 divisors (see below), whose sum is σ = 505764. Its totient is φ = 449536.

The previous prime is 477637. The next prime is 477671. The reversal of 477649 is 946774.

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

It can be written as a sum of positive squares in 2 ways, for example, as 135424 + 342225 = 368^2 + 585^2 .

It is a cyclic number.

It is not a de Polignac number, because 477649 - 2¹³ = 469457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (477619) 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, 14032 + ... + 14065.

It is an arithmetic number, because the mean of its divisors is an integer number (126441).

2⁴⁷⁷⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

477649 is a deficient number, since it is larger than the sum of its proper divisors (28115).

477649 is a wasteful number, since it uses less digits than its factorization.

477649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28114.

The product of its digits is 42336, while the sum is 37.

The square root of 477649 is about 691.1215522613. The cubic root of 477649 is about 78.1693122482.

The spelling of 477649 in words is "four hundred seventy-seven thousand, six hundred forty-nine".