78700082 has 8 divisors (see below), whose sum is σ = 118510236. Its totient is φ = 39196672.

The previous prime is 78700079. The next prime is 78700087. The reversal of 78700082 is 28000787.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68079001 + 10621081 = 8251^2 + 3259^2 .

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 (78700087) 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, 76043 + ... + 77070.

Almost surely, 2^78700082 is an apocalyptic number.

78700082 is a deficient number, since it is larger than the sum of its proper divisors (39810154).

78700082 is a wasteful number, since it uses less digits than its factorization.

78700082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153372.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 78700082 is about 8871.3066681296. The cubic root of 78700082 is about 428.5403582026.

The spelling of 78700082 in words is "seventy-eight million, seven hundred thousand, eighty-two".