990794429 has 4 divisors (see below), whose sum is σ = 990864576. Its totient is φ = 990724284.

The previous prime is 990794419. The next prime is 990794461. The reversal of 990794429 is 924497099.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 990794429 - 2⁸ = 990794173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990794419) 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, 5669 + ... + 44874.

It is an arithmetic number, because the mean of its divisors is an integer number (247716144).

Almost surely, 2^990794429 is an apocalyptic number.

It is an amenable number.

990794429 is a deficient number, since it is larger than the sum of its proper divisors (70147).

990794429 is a wasteful number, since it uses less digits than its factorization.

990794429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70146.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 990794429 is about 31476.8872190374. The cubic root of 990794429 is about 996.9220120438.

The spelling of 990794429 in words is "nine hundred ninety million, seven hundred ninety-four thousand, four hundred twenty-nine".