78200036 has 6 divisors (see below), whose sum is σ = 136850070. Its totient is φ = 39100016.

The previous prime is 78200033. The next prime is 78200047. The reversal of 78200036 is 63000287.

It can be written as a sum of positive squares in only one way, i.e., 39137536 + 39062500 = 6256^2 + 6250^2 .

It is a super-2 number, since 2×78200036² = 12230491260802592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78199978 and 78200014.

It is not an unprimeable number, because it can be changed into a prime (78200033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9775001 + ... + 9775008.

It is an arithmetic number, because the mean of its divisors is an integer number (22808345).

Almost surely, 2^78200036 is an apocalyptic number.

It is an amenable number.

78200036 is a deficient number, since it is larger than the sum of its proper divisors (58650034).

78200036 is a wasteful number, since it uses less digits than its factorization.

78200036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19550013 (or 19550011 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 78200036 is about 8843.0784232642. The cubic root of 78200036 is about 427.6308066139.

The spelling of 78200036 in words is "seventy-eight million, two hundred thousand, thirty-six".