198812715 has 8 divisors (see below), whose sum is σ = 318100368. Its totient is φ = 106033440.

The previous prime is 198812701. The next prime is 198812717. The reversal of 198812715 is 517218891.

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

It is not a de Polignac number, because 198812715 - 2⁷ = 198812587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198812717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6627076 + ... + 6627105.

It is an arithmetic number, because the mean of its divisors is an integer number (39762546).

Almost surely, 2^198812715 is an apocalyptic number.

198812715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198812715 is a deficient number, since it is larger than the sum of its proper divisors (119287653).

198812715 is a wasteful number, since it uses less digits than its factorization.

198812715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13254189.

The product of its digits is 40320, while the sum is 42.

The square root of 198812715 is about 14100.0962762671. The cubic root of 198812715 is about 583.6440360220.

The spelling of 198812715 in words is "one hundred ninety-eight million, eight hundred twelve thousand, seven hundred fifteen".