399349603061 has 4 divisors (see below), whose sum is σ = 409089837324. Its totient is φ = 389609368800.

The previous prime is 399349603027. The next prime is 399349603073. The reversal of 399349603061 is 160306943993.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95732072836 + 303617530225 = 309406^2 + 551015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-399349603061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 399349602994 and 399349603012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399349603661) 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, 4870117070 + ... + 4870117151.

It is an arithmetic number, because the mean of its divisors is an integer number (102272459331).

Almost surely, 2^399349603061 is an apocalyptic number.

It is an amenable number.

399349603061 is a deficient number, since it is larger than the sum of its proper divisors (9740234263).

399349603061 is an equidigital number, since it uses as much as digits as its factorization.

399349603061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9740234262.

The product of its (nonzero) digits is 2834352, while the sum is 53.

The spelling of 399349603061 in words is "three hundred ninety-nine billion, three hundred forty-nine million, six hundred three thousand, sixty-one".