78313226 has 8 divisors (see below), whose sum is σ = 117846084. Its totient is φ = 39031200.

The previous prime is 78313219. The next prime is 78313243. The reversal of 78313226 is 62231387.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 77457601 + 855625 = 8801^2 + 925^2 .

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

It is a super-2 number, since 2×78313226² = 12265922733054152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78313192 and 78313201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61925 + ... + 63176.

Almost surely, 2^78313226 is an apocalyptic number.

78313226 is a deficient number, since it is larger than the sum of its proper divisors (39532858).

78313226 is a wasteful number, since it uses less digits than its factorization.

78313226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125416.

The product of its digits is 12096, while the sum is 32.

The square root of 78313226 is about 8849.4760296867. The cubic root of 78313226 is about 427.8370307134.

The spelling of 78313226 in words is "seventy-eight million, three hundred thirteen thousand, two hundred twenty-six".