78633106 has 4 divisors (see below), whose sum is σ = 117949662. Its totient is φ = 39316552.

The previous prime is 78633101. The next prime is 78633127. The reversal of 78633106 is 60133687.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60133687 = 1223 ⋅49169.

It can be written as a sum of positive squares in only one way, i.e., 49914225 + 28718881 = 7065^2 + 5359^2 .

It is not an unprimeable number, because it can be changed into a prime (78633101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19658275 + ... + 19658278.

Almost surely, 2^78633106 is an apocalyptic number.

78633106 is a deficient number, since it is larger than the sum of its proper divisors (39316556).

78633106 is a wasteful number, since it uses less digits than its factorization.

78633106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39316555.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 78633106 is about 8867.5309979723. The cubic root of 78633106 is about 428.4187570377.

The spelling of 78633106 in words is "seventy-eight million, six hundred thirty-three thousand, one hundred six".