487057477 has 4 divisors (see below), whose sum is σ = 487346860. Its totient is φ = 486768096.

The previous prime is 487057423. The next prime is 487057507. The reversal of 487057477 is 774750784.

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 347486881 + 139570596 = 18641^2 + 11814^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487057477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 487057477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487037477) 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, 142152 + ... + 145537.

It is an arithmetic number, because the mean of its divisors is an integer number (121836715).

Almost surely, 2^487057477 is an apocalyptic number.

It is an amenable number.

487057477 is a deficient number, since it is larger than the sum of its proper divisors (289383).

487057477 is a wasteful number, since it uses less digits than its factorization.

487057477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289382.

The product of its (nonzero) digits is 1536640, while the sum is 49.

The square root of 487057477 is about 22069.3787180337. The cubic root of 487057477 is about 786.7922466816.

The spelling of 487057477 in words is "four hundred eighty-seven million, fifty-seven thousand, four hundred seventy-seven".