809964914 has 16 divisors (see below), whose sum is σ = 1332343296. Its totient is φ = 366236400.

The previous prime is 809964901. The next prime is 809964973. The reversal of 809964914 is 419469908.

It is a happy number.

It is a super-2 number, since 2×809964914² = 1312086323822054792, which contains 22 as substring.

It is an unprimeable number.

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, 92177 + ... + 100580.

It is an arithmetic number, because the mean of its divisors is an integer number (83271456).

Almost surely, 2^809964914 is an apocalyptic number.

809964914 is a deficient number, since it is larger than the sum of its proper divisors (522378382).

809964914 is a wasteful number, since it uses less digits than its factorization.

809964914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192961.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 809964914 is about 28459.8825366515. The cubic root of 809964914 is about 932.1562922882.

The spelling of 809964914 in words is "eight hundred nine million, nine hundred sixty-four thousand, nine hundred fourteen".