78229733 has 16 divisors (see below), whose sum is σ = 86546880. Its totient is φ = 70377216.

The previous prime is 78229703. The next prime is 78229747. The reversal of 78229733 is 33792287.

It is a cyclic number.

It is not a de Polignac number, because 78229733 - 2⁸ = 78229477 is a prime.

It is a super-2 number, since 2×78229733² = 12239782250502578, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78229703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52010 + ... + 53492.

It is an arithmetic number, because the mean of its divisors is an integer number (5409180).

Almost surely, 2^78229733 is an apocalyptic number.

It is an amenable number.

78229733 is a deficient number, since it is larger than the sum of its proper divisors (8317147).

78229733 is a wasteful number, since it uses less digits than its factorization.

78229733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636.

The product of its digits is 127008, while the sum is 41.

The square root of 78229733 is about 8844.7573737215. The cubic root of 78229733 is about 427.6849316736.

The spelling of 78229733 in words is "seventy-eight million, two hundred twenty-nine thousand, seven hundred thirty-three".