78334229 has 8 divisors (see below), whose sum is σ = 79622208. Its totient is φ = 77051520.

The previous prime is 78334219. The next prime is 78334237. The reversal of 78334229 is 92243387.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 78334229 - 2⁴ = 78334213 is a prime.

It is a super-2 number, since 2×78334229² = 12272502866048882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78334192 and 78334201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78334219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37829 + ... + 39845.

It is an arithmetic number, because the mean of its divisors is an integer number (9952776).

Almost surely, 2^78334229 is an apocalyptic number.

It is an amenable number.

78334229 is a deficient number, since it is larger than the sum of its proper divisors (1287979).

78334229 is a wasteful number, since it uses less digits than its factorization.

78334229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635.

The product of its digits is 72576, while the sum is 38.

The square root of 78334229 is about 8850.6626305605. The cubic root of 78334229 is about 427.8752748194.

The spelling of 78334229 in words is "seventy-eight million, three hundred thirty-four thousand, two hundred twenty-nine".