487881157 has 4 divisors (see below), whose sum is σ = 488935360. Its totient is φ = 486826956.

The previous prime is 487881143. The next prime is 487881187. The reversal of 487881157 is 751188784.

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 487881157 - 2¹¹ = 487879109 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 487881157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487881137) 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, 526407 + ... + 527332.

It is an arithmetic number, because the mean of its divisors is an integer number (122233840).

Almost surely, 2^487881157 is an apocalyptic number.

It is an amenable number.

487881157 is a deficient number, since it is larger than the sum of its proper divisors (1054203).

487881157 is a wasteful number, since it uses less digits than its factorization.

487881157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054202.

The product of its digits is 501760, while the sum is 49.

The square root of 487881157 is about 22088.0319856704. The cubic root of 487881157 is about 787.2355208941.

The spelling of 487881157 in words is "four hundred eighty-seven million, eight hundred eighty-one thousand, one hundred fifty-seven".