487093861 has 4 divisors (see below), whose sum is σ = 512730400. Its totient is φ = 461457324.

The previous prime is 487093813. The next prime is 487093879. The reversal of 487093861 is 168390784.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 487093861 - 2⁹ = 487093349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487093801) 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, 12818241 + ... + 12818278.

It is an arithmetic number, because the mean of its divisors is an integer number (128182600).

Almost surely, 2^487093861 is an apocalyptic number.

It is an amenable number.

487093861 is a deficient number, since it is larger than the sum of its proper divisors (25636539).

487093861 is a wasteful number, since it uses less digits than its factorization.

487093861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25636538.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 487093861 is about 22070.2030122063. The cubic root of 487093861 is about 786.8118377550.

The spelling of 487093861 in words is "four hundred eighty-seven million, ninety-three thousand, eight hundred sixty-one".