78013322 has 8 divisors (see below), whose sum is σ = 117081156. Its totient is φ = 38986272.

The previous prime is 78013321. The next prime is 78013337. The reversal of 78013322 is 22331087.

It can be written as a sum of positive squares in 2 ways, for example, as 49294441 + 28718881 = 7021^2 + 5359^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 78013291 and 78013300.

It is not an unprimeable number, because it can be changed into a prime (78013321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4853 + ... + 13400.

Almost surely, 2^78013322 is an apocalyptic number.

78013322 is a deficient number, since it is larger than the sum of its proper divisors (39067834).

78013322 is a wasteful number, since it uses less digits than its factorization.

78013322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20392.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 78013322 is about 8832.5150438593. The cubic root of 78013322 is about 427.2901917248.

The spelling of 78013322 in words is "seventy-eight million, thirteen thousand, three hundred twenty-two".