78033906 has 48 divisors (see below), whose sum is σ = 177297120. Its totient is φ = 24776640.

The previous prime is 78033847. The next prime is 78033929. The reversal of 78033906 is 60933087.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30505 + ... + 32963.

It is an arithmetic number, because the mean of its divisors is an integer number (3693690).

Almost surely, 2^78033906 is an apocalyptic number.

78033906 is an abundant number, since it is smaller than the sum of its proper divisors (99263214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78033906 is a wasteful number, since it uses less digits than its factorization.

78033906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551 (or 2548 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 78033906 is about 8833.6802070258. The cubic root of 78033906 is about 427.3277689301.

The spelling of 78033906 in words is "seventy-eight million, thirty-three thousand, nine hundred six".