813449499 has 8 divisors (see below), whose sum is σ = 1091508240. Its totient is φ = 538845216.

The previous prime is 813449453. The next prime is 813449501. The reversal of 813449499 is 994944318.

It is a happy number.

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

It is not a de Polignac number, because 813449499 - 2⁸ = 813449243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (813449599) 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 7 ways as a sum of consecutive naturals, for example, 863064 + ... + 864005.

It is an arithmetic number, because the mean of its divisors is an integer number (136438530).

Almost surely, 2^813449499 is an apocalyptic number.

813449499 is a deficient number, since it is larger than the sum of its proper divisors (278058741).

813449499 is a wasteful number, since it uses less digits than its factorization.

813449499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727229.

The product of its digits is 1119744, while the sum is 51.

The square root of 813449499 is about 28521.0360786560. The cubic root of 813449499 is about 933.4911364841.

The spelling of 813449499 in words is "eight hundred thirteen million, four hundred forty-nine thousand, four hundred ninety-nine".