78207106 has 8 divisors (see below), whose sum is σ = 124211340. Its totient is φ = 36803328.

The previous prime is 78207083. The next prime is 78207121. The reversal of 78207106 is 60170287.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73256481 + 4950625 = 8559^2 + 2225^2 .

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

It is a super-2 number, since 2×78207106² = 12232702857790472, which contains 22 as substring.

It is a plaindrome in base 12.

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, 1150071 + ... + 1150138.

Almost surely, 2^78207106 is an apocalyptic number.

78207106 is a deficient number, since it is larger than the sum of its proper divisors (46004234).

78207106 is a wasteful number, since it uses less digits than its factorization.

78207106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300228.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 78207106 is about 8843.4781618999. The cubic root of 78207106 is about 427.6436934737.

The spelling of 78207106 in words is "seventy-eight million, two hundred seven thousand, one hundred six".