78152206 has 48 divisors (see below), whose sum is σ = 141724800. Its totient is φ = 32147280.

The previous prime is 78152201. The next prime is 78152257. The reversal of 78152206 is 60225187.

It is a super-2 number, since 2×78152206² = 12215534605332872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78152201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105385 + ... + 106123.

It is an arithmetic number, because the mean of its divisors is an integer number (2952600).

Almost surely, 2^78152206 is an apocalyptic number.

78152206 is a deficient number, since it is larger than the sum of its proper divisors (63572594).

78152206 is a wasteful number, since it uses less digits than its factorization.

78152206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 78152206 is about 8840.3736346378. The cubic root of 78152206 is about 427.5436039561.

The spelling of 78152206 in words is "seventy-eight million, one hundred fifty-two thousand, two hundred six".