802678993 has 4 divisors (see below), whose sum is σ = 807603568. Its totient is φ = 797754420.

The previous prime is 802678967. The next prime is 802679039. The reversal of 802678993 is 399876208.

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 a cyclic number.

It is not a de Polignac number, because 802678993 - 2²¹ = 800581841 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 802678993.

It is not an unprimeable number, because it can be changed into a prime (802678963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2462043 + ... + 2462368.

It is an arithmetic number, because the mean of its divisors is an integer number (201900892).

Almost surely, 2^802678993 is an apocalyptic number.

It is an amenable number.

802678993 is a deficient number, since it is larger than the sum of its proper divisors (4924575).

802678993 is a wasteful number, since it uses less digits than its factorization.

802678993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4924574.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 802678993 is about 28331.5900189170. The cubic root of 802678993 is about 929.3528441782.

The spelling of 802678993 in words is "eight hundred two million, six hundred seventy-eight thousand, nine hundred ninety-three".