949806819 has 24 divisors (see below), whose sum is σ = 1479218832. Its totient is φ = 583807680.

The previous prime is 949806797. The next prime is 949806829. The reversal of 949806819 is 918608949.

It is not a de Polignac number, because 949806819 - 2⁸ = 949806563 is a prime.

It is a super-2 number, since 2×949806819² = 1804265986837797522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (949806829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105784 + ... + 114410.

It is an arithmetic number, because the mean of its divisors is an integer number (61634118).

Almost surely, 2^949806819 is an apocalyptic number.

949806819 is a deficient number, since it is larger than the sum of its proper divisors (529412013).

949806819 is a wasteful number, since it uses less digits than its factorization.

949806819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9587 (or 9584 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 949806819 is about 30818.9360458793. The cubic root of 949806819 is about 982.9809342505.

It can be divided in two parts, 949806 and 819, that added together give a square (950625 = 975²).

The spelling of 949806819 in words is "nine hundred forty-nine million, eight hundred six thousand, eight hundred nineteen".