489977999 has 24 divisors (see below), whose sum is σ = 579348000. Its totient is φ = 413138880.

The previous prime is 489977981. The next prime is 489978031. The reversal of 489977999 is 999779984.

It is not a de Polignac number, because 489977999 - 2¹⁶ = 489912463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489977699) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1062629 + ... + 1063089.

It is an arithmetic number, because the mean of its divisors is an integer number (24139500).

Almost surely, 2^489977999 is an apocalyptic number.

489977999 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

489977999 is a deficient number, since it is larger than the sum of its proper divisors (89370001).

489977999 is a wasteful number, since it uses less digits than its factorization.

489977999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783 (or 776 counting only the distinct ones).

The product of its digits is 92588832, while the sum is 71.

The square root of 489977999 is about 22135.4466636659. The cubic root of 489977999 is about 788.3617168103.

The spelling of 489977999 in words is "four hundred eighty-nine million, nine hundred seventy-seven thousand, nine hundred ninety-nine".