78000106 has 4 divisors (see below), whose sum is σ = 117000162. Its totient is φ = 39000052.

The previous prime is 78000101. The next prime is 78000113. The reversal of 78000106 is 60100087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60100087 = 839 ⋅71633.

It can be written as a sum of positive squares in only one way, i.e., 75777025 + 2223081 = 8705^2 + 1491^2 .

It is a super-2 number, since 2×78000106² = 12168033072022472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (78000101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19500025 + ... + 19500028.

Almost surely, 2^78000106 is an apocalyptic number.

78000106 is a deficient number, since it is larger than the sum of its proper divisors (39000056).

78000106 is a wasteful number, since it uses less digits than its factorization.

78000106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39000055.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 78000106 is about 8831.7668673941. The cubic root of 78000106 is about 427.2660617175.

The spelling of 78000106 in words is "seventy-eight million, one hundred six", and thus it is an aban number.