487649441 has 4 divisors (see below), whose sum is σ = 487701552. Its totient is φ = 487597332.

The previous prime is 487649431. The next prime is 487649479. The reversal of 487649441 is 144946784.

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 487649441 - 2⁶ = 487649377 is a prime.

It is a super-2 number, since 2×487649441² = 475603954615224962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487649411) 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, 7715 + ... + 32168.

It is an arithmetic number, because the mean of its divisors is an integer number (121925388).

Almost surely, 2^487649441 is an apocalyptic number.

It is an amenable number.

487649441 is a deficient number, since it is larger than the sum of its proper divisors (52111).

487649441 is a wasteful number, since it uses less digits than its factorization.

487649441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52110.

The product of its digits is 774144, while the sum is 47.

The square root of 487649441 is about 22082.7860787537. The cubic root of 487649441 is about 787.1108703517.

The spelling of 487649441 in words is "four hundred eighty-seven million, six hundred forty-nine thousand, four hundred forty-one".