78193206 has 48 divisors (see below), whose sum is σ = 208519584. Its totient is φ = 20621952.

The previous prime is 78193201. The next prime is 78193211. The reversal of 78193206 is 60239187.

It is an interprime number because it is at equal distance from previous prime (78193201) and next prime (78193211).

It is a super-2 number, since 2×78193206² = 12228354929116872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78193201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22231 + ... + 25506.

It is an arithmetic number, because the mean of its divisors is an integer number (4344158).

Almost surely, 2^78193206 is an apocalyptic number.

78193206 is an abundant number, since it is smaller than the sum of its proper divisors (130326378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78193206 is a wasteful number, since it uses less digits than its factorization.

78193206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47765 (or 47762 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 78193206 is about 8842.6922370961. The cubic root of 78193206 is about 427.6183564771.

It can be divided in two parts, 7819 and 3206, that added together give a square (11025 = 105²).

The spelling of 78193206 in words is "seventy-eight million, one hundred ninety-three thousand, two hundred six".