78346229 has 8 divisors (see below), whose sum is σ = 85193472. Its totient is φ = 71616240.

The previous prime is 78346201. The next prime is 78346231. The reversal of 78346229 is 92264387.

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 78346229 - 2¹⁶ = 78280693 is a prime.

It is a super-2 number, since 2×78346229² = 12276263197040882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78346529) 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, 27917 + ... + 30594.

It is an arithmetic number, because the mean of its divisors is an integer number (10649184).

Almost surely, 2^78346229 is an apocalyptic number.

It is an amenable number.

78346229 is a deficient number, since it is larger than the sum of its proper divisors (6847243).

78346229 is a wasteful number, since it uses less digits than its factorization.

78346229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58627.

The product of its digits is 145152, while the sum is 41.

The square root of 78346229 is about 8851.3405199439. The cubic root of 78346229 is about 427.8971224042.

The spelling of 78346229 in words is "seventy-eight million, three hundred forty-six thousand, two hundred twenty-nine".