199424633 has 4 divisors (see below), whose sum is σ = 199480320. Its totient is φ = 199368948.

The previous prime is 199424623. The next prime is 199424639. The reversal of 199424633 is 336424991.

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 199424633 - 2¹² = 199420537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199424639) 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, 22073 + ... + 29766.

It is an arithmetic number, because the mean of its divisors is an integer number (49870080).

Almost surely, 2^199424633 is an apocalyptic number.

It is an amenable number.

199424633 is a deficient number, since it is larger than the sum of its proper divisors (55687).

199424633 is an equidigital number, since it uses as much as digits as its factorization.

199424633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55686.

The product of its digits is 139968, while the sum is 41.

The square root of 199424633 is about 14121.7786769231. The cubic root of 199424633 is about 584.2422145724.

The spelling of 199424633 in words is "one hundred ninety-nine million, four hundred twenty-four thousand, six hundred thirty-three".