78098236 has 6 divisors (see below), whose sum is σ = 136671920. Its totient is φ = 39049116.

The previous prime is 78098233. The next prime is 78098261. The reversal of 78098236 is 63289087.

It is a junction number, because it is equal to n+sod(n) for n = 78098192 and 78098201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78098233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9762276 + ... + 9762283.

Almost surely, 2^78098236 is an apocalyptic number.

It is an amenable number.

78098236 is a deficient number, since it is larger than the sum of its proper divisors (58573684).

78098236 is a wasteful number, since it uses less digits than its factorization.

78098236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19524563 (or 19524561 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 78098236 is about 8837.3206346720. The cubic root of 78098236 is about 427.4451642442.

The spelling of 78098236 in words is "seventy-eight million, ninety-eight thousand, two hundred thirty-six".