990711349 has 4 divisors (see below), whose sum is σ = 990791136. Its totient is φ = 990631564.

The previous prime is 990711317. The next prime is 990711391. The reversal of 990711349 is 943117099.

It is a happy number.

990711349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 943117099 = 1021 ⋅923719.

It is a cyclic number.

It is not a de Polignac number, because 990711349 - 2⁵ = 990711317 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 (990711049) 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, 16819 + ... + 47584.

It is an arithmetic number, because the mean of its divisors is an integer number (247697784).

Almost surely, 2^990711349 is an apocalyptic number.

It is an amenable number.

990711349 is a deficient number, since it is larger than the sum of its proper divisors (79787).

990711349 is a wasteful number, since it uses less digits than its factorization.

990711349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79786.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 990711349 is about 31475.5674928984. The cubic root of 990711349 is about 996.8941466617.

The spelling of 990711349 in words is "nine hundred ninety million, seven hundred eleven thousand, three hundred forty-nine".