78344601 has 8 divisors (see below), whose sum is σ = 109001280. Its totient is φ = 49958832.

The previous prime is 78344597. The next prime is 78344611. The reversal of 78344601 is 10644387.

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

It is not a de Polignac number, because 78344601 - 2² = 78344597 is a prime.

It is a super-2 number, since 2×78344601² = 12275753011698402, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (78344611) 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, 567646 + ... + 567783.

It is an arithmetic number, because the mean of its divisors is an integer number (13625160).

Almost surely, 2^78344601 is an apocalyptic number.

It is an amenable number.

78344601 is a deficient number, since it is larger than the sum of its proper divisors (30656679).

78344601 is a wasteful number, since it uses less digits than its factorization.

78344601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135455.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 78344601 is about 8851.2485559948. The cubic root of 78344601 is about 427.8941585460.

Adding to 78344601 its reverse (10644387), we get a palindrome (88988988).

The spelling of 78344601 in words is "seventy-eight million, three hundred forty-four thousand, six hundred one".