78343213 has 8 divisors (see below), whose sum is σ = 88810400. Its totient is φ = 68510448.

The previous prime is 78343211. The next prime is 78343241. The reversal of 78343213 is 31234387.

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 78343213 - 2¹ = 78343211 is a prime.

It is a super-2 number, since 2×78343213² = 12275318046326738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78343211) 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, 158343 + ... + 158836.

It is an arithmetic number, because the mean of its divisors is an integer number (11101300).

Almost surely, 2^78343213 is an apocalyptic number.

It is an amenable number.

78343213 is a deficient number, since it is larger than the sum of its proper divisors (10467187).

78343213 is a wasteful number, since it uses less digits than its factorization.

78343213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317211.

The product of its digits is 12096, while the sum is 31.

The square root of 78343213 is about 8851.1701486301. The cubic root of 78343213 is about 427.8916315878.

The spelling of 78343213 in words is "seventy-eight million, three hundred forty-three thousand, two hundred thirteen".