198073507 has 8 divisors (see below), whose sum is σ = 201996992. Its totient is φ = 194178600.

The previous prime is 198073489. The next prime is 198073531. The reversal of 198073507 is 705370891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198073507 is a prime.

It is a super-2 number, since 2×198073507² = 78466228350558098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 198073507.

It is not an unprimeable number, because it can be changed into a prime (198073807) 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, 7132 + ... + 21142.

It is an arithmetic number, because the mean of its divisors is an integer number (25249624).

Almost surely, 2^198073507 is an apocalyptic number.

198073507 is a deficient number, since it is larger than the sum of its proper divisors (3923485).

198073507 is a wasteful number, since it uses less digits than its factorization.

198073507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14289.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 198073507 is about 14073.8589946041. The cubic root of 198073507 is about 582.9197863097.

The spelling of 198073507 in words is "one hundred ninety-eight million, seventy-three thousand, five hundred seven".