78088212 has 30 divisors (see below), whose sum is σ = 204138858. Its totient is φ = 26029296.

The previous prime is 78088207. The next prime is 78088217. The reversal of 78088212 is 21288087.

It is an interprime number because it is at equal distance from previous prime (78088207) and next prime (78088217).

It can be written as a sum of positive squares in only one way, i.e., 76842756 + 1245456 = 8766^2 + 1116^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78088217) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 120183 + ... + 120830.

Almost surely, 2^78088212 is an apocalyptic number.

It is an amenable number.

78088212 is an abundant number, since it is smaller than the sum of its proper divisors (126050646).

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

78088212 is a wasteful number, since it uses less digits than its factorization.

78088212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241029 (or 241018 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 78088212 is about 8836.7534762491. The cubic root of 78088212 is about 427.4268757661.

The spelling of 78088212 in words is "seventy-eight million, eighty-eight thousand, two hundred twelve".