999355061 has 4 divisors (see below), whose sum is σ = 1000700832. Its totient is φ = 998009292.

The previous prime is 999355057. The next prime is 999355127. The reversal of 999355061 is 160553999.

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, and also an emirpimes, since its reverse is a distinct semiprime: 160553999 = 137 ⋅1171927.

It is a cyclic number.

It is not a de Polignac number, because 999355061 - 2² = 999355057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 999354997 and 999355015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999355661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671771 + ... + 673256.

It is an arithmetic number, because the mean of its divisors is an integer number (250175208).

Almost surely, 2^999355061 is an apocalyptic number.

It is an amenable number.

999355061 is a deficient number, since it is larger than the sum of its proper divisors (1345771).

999355061 is a wasteful number, since it uses less digits than its factorization.

999355061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345770.

The product of its (nonzero) digits is 328050, while the sum is 47.

The square root of 999355061 is about 31612.5775760219. The cubic root of 999355061 is about 999.7849741005.

The spelling of 999355061 in words is "nine hundred ninety-nine million, three hundred fifty-five thousand, sixty-one".