816029249 has 4 divisors (see below), whose sum is σ = 932604864. Its totient is φ = 699453636.

The previous prime is 816029239. The next prime is 816029251. The reversal of 816029249 is 942920618.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 816029249 - 2¹⁶ = 815963713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (816029209) 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 3 ways as a sum of consecutive naturals, for example, 58287797 + ... + 58287810.

It is an arithmetic number, because the mean of its divisors is an integer number (233151216).

Almost surely, 2^816029249 is an apocalyptic number.

It is an amenable number.

816029249 is a deficient number, since it is larger than the sum of its proper divisors (116575615).

816029249 is a wasteful number, since it uses less digits than its factorization.

816029249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116575614.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 816029249 is about 28566.2256694860. The cubic root of 816029249 is about 934.4769106474.

The spelling of 816029249 in words is "eight hundred sixteen million, twenty-nine thousand, two hundred forty-nine".