499647401 has 16 divisors (see below), whose sum is σ = 566922048. Its totient is φ = 436363200.

The previous prime is 499647397. The next prime is 499647413. The reversal of 499647401 is 104746994.

It is a cyclic number.

It is not a de Polignac number, because 499647401 - 2² = 499647397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (499647451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20195 + ... + 37511.

It is an arithmetic number, because the mean of its divisors is an integer number (35432628).

Almost surely, 2^499647401 is an apocalyptic number.

It is an amenable number.

499647401 is a deficient number, since it is larger than the sum of its proper divisors (67274647).

499647401 is a wasteful number, since it uses less digits than its factorization.

499647401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17432.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 499647401 is about 22352.7940311720. The cubic root of 499647401 is about 793.5139101023.

The spelling of 499647401 in words is "four hundred ninety-nine million, six hundred forty-seven thousand, four hundred one".