78897200 has 30 divisors (see below), whose sum is σ = 189551484. Its totient is φ = 31558720.

The previous prime is 78897193. The next prime is 78897229. The reversal of 78897200 is 279887.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 98222 + ... + 99021.

Almost surely, 2^78897200 is an apocalyptic number.

It is an amenable number.

78897200 is an abundant number, since it is smaller than the sum of its proper divisors (110654284).

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

78897200 is a wasteful number, since it uses less digits than its factorization.

78897200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197261 (or 197250 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 78897200 is about 8882.4095829904. The cubic root of 78897200 is about 428.8978444482.

It can be divided in two parts, 78897 and 200, that added together give a palindrome (79097).

The spelling of 78897200 in words is "seventy-eight million, eight hundred ninety-seven thousand, two hundred".