78074193 has 8 divisors (see below), whose sum is σ = 105054400. Its totient is φ = 51571728.

The previous prime is 78074189. The next prime is 78074219. The reversal of 78074193 is 39147087.

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

It is not a de Polignac number, because 78074193 - 2² = 78074189 is a prime.

It is a super-2 number, since 2×78074193² = 12191159225202498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78074123) 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, 119053 + ... + 119706.

It is an arithmetic number, because the mean of its divisors is an integer number (13131800).

Almost surely, 2^78074193 is an apocalyptic number.

It is an amenable number.

78074193 is a deficient number, since it is larger than the sum of its proper divisors (26980207).

78074193 is a wasteful number, since it uses less digits than its factorization.

78074193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238871.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 78074193 is about 8835.9602194668. The cubic root of 78074193 is about 427.4012959086.

The spelling of 78074193 in words is "seventy-eight million, seventy-four thousand, one hundred ninety-three".