78900208 has 20 divisors (see below), whose sum is σ = 157801408. Its totient is φ = 38177280.

The previous prime is 78900203. The next prime is 78900221. The reversal of 78900208 is 80200987.

It is a happy number.

78900208 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78900203) 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, 79041 + ... + 80032.

Almost surely, 2^78900208 is an apocalyptic number.

It is an amenable number.

78900208 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78900208 is a wasteful number, since it uses less digits than its factorization.

78900208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159112 (or 159106 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 78900208 is about 8882.5789048001. The cubic root of 78900208 is about 428.9032950358.

The spelling of 78900208 in words is "seventy-eight million, nine hundred thousand, two hundred eight".