78980306 has 8 divisors (see below), whose sum is σ = 120093564. Its totient is φ = 38949120.

The previous prime is 78980303. The next prime is 78980327. The reversal of 78980306 is 60308987.

It can be written as a sum of positive squares in 2 ways, for example, as 71554681 + 7425625 = 8459^2 + 2725^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (78980303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270335 + ... + 270626.

Almost surely, 2^78980306 is an apocalyptic number.

78980306 is a deficient number, since it is larger than the sum of its proper divisors (41113258).

78980306 is a wasteful number, since it uses less digits than its factorization.

78980306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541036.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 78980306 is about 8887.0864742051. The cubic root of 78980306 is about 429.0483841227.

The spelling of 78980306 in words is "seventy-eight million, nine hundred eighty thousand, three hundred six".