499458987 has 16 divisors (see below), whose sum is σ = 746858880. Its totient is φ = 329858856.

The previous prime is 499458979. The next prime is 499458991. The reversal of 499458987 is 789854994.

499458987 is a `hidden beast` number, since 4 + 99 + 458 + 98 + 7 = 666.

499458987 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 499458987 - 2³ = 499458979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (499458907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83553 + ... + 89330.

It is an arithmetic number, because the mean of its divisors is an integer number (46678680).

Almost surely, 2^499458987 is an apocalyptic number.

499458987 is a deficient number, since it is larger than the sum of its proper divisors (247399893).

499458987 is a wasteful number, since it uses less digits than its factorization.

499458987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172999 (or 172993 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The square root of 499458987 is about 22348.5790823488. The cubic root of 499458987 is about 793.4141544703.

The spelling of 499458987 in words is "four hundred ninety-nine million, four hundred fifty-eight thousand, nine hundred eighty-seven".