30978098 has 8 divisors (see below), whose sum is σ = 46727280. Its totient is φ = 15402340.

The previous prime is 30978091. The next prime is 30978107. The reversal of 30978098 is 89087903.

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

It is not an unprimeable number, because it can be changed into a prime (30978091) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 42908 + ... + 43623.

It is an arithmetic number, because the mean of its divisors is an integer number (5840910).

Almost surely, 2^30978098 is an apocalyptic number.

30978098 is a deficient number, since it is larger than the sum of its proper divisors (15749182).

30978098 is a wasteful number, since it uses less digits than its factorization.

30978098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86712.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 30978098 is about 5565.7971576406. The cubic root of 30978098 is about 314.0640666060.

The spelling of 30978098 in words is "thirty million, nine hundred seventy-eight thousand, ninety-eight".