499971405 has 8 divisors (see below), whose sum is σ = 799954272. Its totient is φ = 266651408.

The previous prime is 499971371. The next prime is 499971431. The reversal of 499971405 is 504179994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 499971405 - 2⁹ = 499970893 is a prime.

It is a super-3 number, since 3×499971405³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16665699 + ... + 16665728.

It is an arithmetic number, because the mean of its divisors is an integer number (99994284).

Almost surely, 2^499971405 is an apocalyptic number.

It is an amenable number.

499971405 is a deficient number, since it is larger than the sum of its proper divisors (299982867).

499971405 is a wasteful number, since it uses less digits than its factorization.

499971405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33331435.

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 499971405 is about 22360.0403622176. The cubic root of 499971405 is about 793.6853951180.

The spelling of 499971405 in words is "four hundred ninety-nine million, nine hundred seventy-one thousand, four hundred five".