499471387 has 4 divisors (see below), whose sum is σ = 500980696. Its totient is φ = 497962080.

The previous prime is 499471367. The next prime is 499471409. The reversal of 499471387 is 783174994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499471387 is a prime.

It is a super-4 number, since 4×499471387⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499471337) 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, 754158 + ... + 754819.

It is an arithmetic number, because the mean of its divisors is an integer number (125245174).

Almost surely, 2^499471387 is an apocalyptic number.

499471387 is a deficient number, since it is larger than the sum of its proper divisors (1509309).

499471387 is a wasteful number, since it uses less digits than its factorization.

499471387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509308.

The product of its digits is 1524096, while the sum is 52.

The square root of 499471387 is about 22348.8565031860. The cubic root of 499471387 is about 793.4207204109.

The spelling of 499471387 in words is "four hundred ninety-nine million, four hundred seventy-one thousand, three hundred eighty-seven".