78328298 has 8 divisors (see below), whose sum is σ = 123676320. Its totient is φ = 37102860.

The previous prime is 78328259. The next prime is 78328301. The reversal of 78328298 is 89282387.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78328298² = 12270644535153608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030598 + ... + 1030673.

It is an arithmetic number, because the mean of its divisors is an integer number (15459540).

Almost surely, 2^78328298 is an apocalyptic number.

78328298 is a deficient number, since it is larger than the sum of its proper divisors (45348022).

78328298 is a wasteful number, since it uses less digits than its factorization.

78328298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061292.

The product of its digits is 387072, while the sum is 47.

The square root of 78328298 is about 8850.3275645594. The cubic root of 78328298 is about 427.8644758267.

The spelling of 78328298 in words is "seventy-eight million, three hundred twenty-eight thousand, two hundred ninety-eight".