998605970 has 8 divisors (see below), whose sum is σ = 1797490764. Its totient is φ = 399442384.

The previous prime is 998605967. The next prime is 998605991. The reversal of 998605970 is 79506899.

It can be written as a sum of positive squares in 2 ways, for example, as 988410721 + 10195249 = 31439^2 + 3193^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49930289 + ... + 49930308.

Almost surely, 2^998605970 is an apocalyptic number.

998605970 is a deficient number, since it is larger than the sum of its proper divisors (798884794).

998605970 is a wasteful number, since it uses less digits than its factorization.

998605970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99860604.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 998605970 is about 31600.7273650465. The cubic root of 998605970 is about 999.5351072415.

The spelling of 998605970 in words is "nine hundred ninety-eight million, six hundred five thousand, nine hundred seventy".