487751990 has 64 divisors (see below), whose sum is σ = 993710592. Its totient is φ = 170822400.

The previous prime is 487751989. The next prime is 487751993. The reversal of 487751990 is 99157784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487751993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373679 + ... + 374981.

It is an arithmetic number, because the mean of its divisors is an integer number (15526728).

Almost surely, 2^487751990 is an apocalyptic number.

487751990 is an abundant number, since it is smaller than the sum of its proper divisors (505958602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

487751990 is a wasteful number, since it uses less digits than its factorization.

487751990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 487751990 is about 22085.1078783872. The cubic root of 487751990 is about 787.1660409780.

The spelling of 487751990 in words is "four hundred eighty-seven million, seven hundred fifty-one thousand, nine hundred ninety".