990829255 has 12 divisors (see below), whose sum is σ = 1287492840. Its totient is φ = 731688672.

The previous prime is 990829249. The next prime is 990829321. The reversal of 990829255 is 552928099.

It is a happy number.

It is not a de Polignac number, because 990829255 - 2⁷ = 990829127 is a prime.

It is a super-2 number, since 2×990829255² = 1963485225127710050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 990829199 and 990829208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 585445 + ... + 587134.

It is an arithmetic number, because the mean of its divisors is an integer number (107291070).

Almost surely, 2^990829255 is an apocalyptic number.

990829255 is a deficient number, since it is larger than the sum of its proper divisors (296663585).

990829255 is a wasteful number, since it uses less digits than its factorization.

990829255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172610 (or 1172597 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 49.

The square root of 990829255 is about 31477.4404137312. The cubic root of 990829255 is about 996.9336923676.

The spelling of 990829255 in words is "nine hundred ninety million, eight hundred twenty-nine thousand, two hundred fifty-five".