199313477 has 16 divisors (see below), whose sum is σ = 236267520. Its totient is φ = 166114800.

The previous prime is 199313467. The next prime is 199313479. The reversal of 199313477 is 774313991.

It is a cyclic number.

It is not a de Polignac number, because 199313477 - 2¹⁶ = 199247941 is a prime.

It is a super-2 number, since 2×199313477² = 79451724227659058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199313479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8903 + ... + 21860.

It is an arithmetic number, because the mean of its divisors is an integer number (14766720).

Almost surely, 2^199313477 is an apocalyptic number.

It is an amenable number.

199313477 is a deficient number, since it is larger than the sum of its proper divisors (36954043).

199313477 is a wasteful number, since it uses less digits than its factorization.

199313477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30824.

The product of its digits is 142884, while the sum is 44.

The square root of 199313477 is about 14117.8425051422. The cubic root of 199313477 is about 584.1336454082.

The spelling of 199313477 in words is "one hundred ninety-nine million, three hundred thirteen thousand, four hundred seventy-seven".