487307381 has 4 divisors (see below), whose sum is σ = 531608064. Its totient is φ = 443006700.

The previous prime is 487307357. The next prime is 487307399. The reversal of 487307381 is 183703784.

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 487307381 - 2²⁶ = 420198517 is a prime.

It is a super-2 number, since 2×487307381² = 474936967154158322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487307341) 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, 22150325 + ... + 22150346.

It is an arithmetic number, because the mean of its divisors is an integer number (132902016).

Almost surely, 2^487307381 is an apocalyptic number.

It is an amenable number.

487307381 is a deficient number, since it is larger than the sum of its proper divisors (44300683).

487307381 is a wasteful number, since it uses less digits than its factorization.

487307381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44300682.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 487307381 is about 22075.0397734636. The cubic root of 487307381 is about 786.9267885787.

The spelling of 487307381 in words is "four hundred eighty-seven million, three hundred seven thousand, three hundred eighty-one".