78884002 has 8 divisors (see below), whose sum is σ = 122406300. Its totient is φ = 38081904.

The previous prime is 78883999. The next prime is 78884009. The reversal of 78884002 is 20048887.

It can be written as a sum of positive squares in 2 ways, for example, as 76230361 + 2653641 = 8731^2 + 1629^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (78884009) 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, 679977 + ... + 680092.

Almost surely, 2^78884002 is an apocalyptic number.

78884002 is a deficient number, since it is larger than the sum of its proper divisors (43522298).

78884002 is a wasteful number, since it uses less digits than its factorization.

78884002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360100.

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 78884002 is about 8881.6666228811. Note that the first 4 decimals coincide. The cubic root of 78884002 is about 428.8739276323.

The spelling of 78884002 in words is "seventy-eight million, eight hundred eighty-four thousand, two".