798878649 has 16 divisors (see below), whose sum is σ = 1101438464. Its totient is φ = 514512000.

The previous prime is 798878629. The next prime is 798878653. The reversal of 798878649 is 946878897.

It is not a de Polignac number, because 798878649 - 2⁸ = 798878393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 798878649.

It is not an unprimeable number, because it can be changed into a prime (798878629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48747 + ... + 63039.

It is an arithmetic number, because the mean of its divisors is an integer number (68839904).

Almost surely, 2^798878649 is an apocalyptic number.

It is an amenable number.

798878649 is a deficient number, since it is larger than the sum of its proper divisors (302559815).

798878649 is a wasteful number, since it uses less digits than its factorization.

798878649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14928.

The product of its digits is 48771072, while the sum is 66.

The square root of 798878649 is about 28264.4414238102. The cubic root of 798878649 is about 927.8838263862.

The spelling of 798878649 in words is "seven hundred ninety-eight million, eight hundred seventy-eight thousand, six hundred forty-nine".