2905323631 has 12 divisors (see below), whose sum is σ = 3443432472. Its totient is φ = 2443288848.

The previous prime is 2905323623. The next prime is 2905323643. The reversal of 2905323631 is 1363235092.

It is not a de Polignac number, because 2905323631 - 2³ = 2905323623 is a prime.

It is a super-2 number, since 2×2905323631² = 16881810801694048322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2905323601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 556765 + ... + 561958.

It is an arithmetic number, because the mean of its divisors is an integer number (286952706).

Almost surely, 2^2905323631 is an apocalyptic number.

2905323631 is a deficient number, since it is larger than the sum of its proper divisors (538108841).

2905323631 is a wasteful number, since it uses less digits than its factorization.

2905323631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118790 (or 1118783 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 2905323631 is about 53901.0540806022. The cubic root of 2905323631 is about 1426.9152260816.

The spelling of 2905323631 in words is "two billion, nine hundred five million, three hundred twenty-three thousand, six hundred thirty-one".