198761415 has 8 divisors (see below), whose sum is σ = 318018288. Its totient is φ = 106006080.

The previous prime is 198761401. The next prime is 198761419. The reversal of 198761415 is 514167891.

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

It is not a de Polignac number, because 198761415 - 2⁷ = 198761287 is a prime.

It is a super-2 number, since 2×198761415² = 79012200185604450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198761419) 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, 6625366 + ... + 6625395.

It is an arithmetic number, because the mean of its divisors is an integer number (39752286).

Almost surely, 2^198761415 is an apocalyptic number.

198761415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

198761415 is a deficient number, since it is larger than the sum of its proper divisors (119256873).

198761415 is a wasteful number, since it uses less digits than its factorization.

198761415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13250769.

The product of its digits is 60480, while the sum is 42.

The square root of 198761415 is about 14098.2770223882. The cubic root of 198761415 is about 583.5938321326.

The spelling of 198761415 in words is "one hundred ninety-eight million, seven hundred sixty-one thousand, four hundred fifteen".