78880206 has 16 divisors (see below), whose sum is σ = 159387984. Its totient is φ = 26022144.

The previous prime is 78880201. The next prime is 78880211. The reversal of 78880206 is 60208887.

It is an interprime number because it is at equal distance from previous prime (78880201) and next prime (78880211).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78880201) 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, 67185 + ... + 68348.

It is an arithmetic number, because the mean of its divisors is an integer number (9961749).

Almost surely, 2^78880206 is an apocalyptic number.

78880206 is an abundant number, since it is smaller than the sum of its proper divisors (80507778).

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

78880206 is a wasteful number, since it uses less digits than its factorization.

78880206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135635.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 78880206 is about 8881.4529216790. The cubic root of 78880206 is about 428.8670481996.

The spelling of 78880206 in words is "seventy-eight million, eight hundred eighty thousand, two hundred six".