198462749 has 4 divisors (see below), whose sum is σ = 198545664. Its totient is φ = 198379836.

The previous prime is 198462701. The next prime is 198462757. The reversal of 198462749 is 947264891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 198462749 - 2¹² = 198458653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 198462697 and 198462706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198462799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37757 + ... + 42690.

It is an arithmetic number, because the mean of its divisors is an integer number (49636416).

Almost surely, 2^198462749 is an apocalyptic number.

It is an amenable number.

198462749 is a deficient number, since it is larger than the sum of its proper divisors (82915).

198462749 is an equidigital number, since it uses as much as digits as its factorization.

198462749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82914.

The product of its digits is 870912, while the sum is 50.

The square root of 198462749 is about 14087.6807530551. The cubic root of 198462749 is about 583.3013759545.

The spelling of 198462749 in words is "one hundred ninety-eight million, four hundred sixty-two thousand, seven hundred forty-nine".