78888098 has 4 divisors (see below), whose sum is σ = 118332150. Its totient is φ = 39444048.

The previous prime is 78888077. The next prime is 78888119. The reversal of 78888098 is 89088887.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (78888077) and next prime (78888119).

It can be written as a sum of positive squares in only one way, i.e., 74252689 + 4635409 = 8617^2 + 2153^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19722023 + ... + 19722026.

Almost surely, 2^78888098 is an apocalyptic number.

78888098 is a deficient number, since it is larger than the sum of its proper divisors (39444052).

78888098 is a wasteful number, since it uses less digits than its factorization.

78888098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39444051.

The product of its (nonzero) digits is 2064384, while the sum is 56.

The square root of 78888098 is about 8881.8972072413. The cubic root of 78888098 is about 428.8813505028.

The spelling of 78888098 in words is "seventy-eight million, eight hundred eighty-eight thousand, ninety-eight".