78898850 has 24 divisors (see below), whose sum is σ = 151815060. Its totient is φ = 30470720.

The previous prime is 78898847. The next prime is 78898861. The reversal of 78898850 is 5889887.

It can be written as a sum of positive squares in 6 ways, for example, as 31550689 + 47348161 = 5617^2 + 6881^2 .

It is a junction number, because it is equal to n+sod(n) for n = 78898792 and 78898801.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25757 + ... + 28656.

Almost surely, 2^78898850 is an apocalyptic number.

78898850 is a deficient number, since it is larger than the sum of its proper divisors (72916210).

78898850 is a wasteful number, since it uses less digits than its factorization.

78898850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54454 (or 54449 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 53.

The square root of 78898850 is about 8882.5024627072. The cubic root of 78898850 is about 428.9008343156.

The spelling of 78898850 in words is "seventy-eight million, eight hundred ninety-eight thousand, eight hundred fifty".