98309978 has 8 divisors (see below), whose sum is σ = 158808468. Its totient is φ = 45373824.

The previous prime is 98309957. The next prime is 98309987. The reversal of 98309978 is 87990389.

It can be written as a sum of positive squares in 2 ways, for example, as 96098809 + 2211169 = 9803^2 + 1487^2 .

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

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, 1890551 + ... + 1890602.

Almost surely, 2^98309978 is an apocalyptic number.

98309978 is a deficient number, since it is larger than the sum of its proper divisors (60498490).

98309978 is a wasteful number, since it uses less digits than its factorization.

98309978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781168.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 98309978 is about 9915.1388290835. The cubic root of 98309978 is about 461.5292175257.

The spelling of 98309978 in words is "ninety-eight million, three hundred nine thousand, nine hundred seventy-eight".