199948629 has 8 divisors (see below), whose sum is σ = 273803680. Its totient is φ = 129696336.

The previous prime is 199948621. The next prime is 199948657. The reversal of 199948629 is 926849991.

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

It is not a de Polignac number, because 199948629 - 2³ = 199948621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199948621) 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, 900559 + ... + 900780.

It is an arithmetic number, because the mean of its divisors is an integer number (34225460).

Almost surely, 2^199948629 is an apocalyptic number.

It is an amenable number.

199948629 is a deficient number, since it is larger than the sum of its proper divisors (73855051).

199948629 is a wasteful number, since it uses less digits than its factorization.

199948629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801379.

The product of its digits is 2519424, while the sum is 57.

The square root of 199948629 is about 14140.3192679656. The cubic root of 199948629 is about 584.7534734500.

The spelling of 199948629 in words is "one hundred ninety-nine million, nine hundred forty-eight thousand, six hundred twenty-nine".