2991429 has 24 divisors (see below), whose sum is σ = 4996992. Its totient is φ = 1689120.

The previous prime is 2991421. The next prime is 2991431. The reversal of 2991429 is 9241992.

2991429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2991429 - 2³ = 2991421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2991393 and 2991402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6259 + ... + 6719.

It is an arithmetic number, because the mean of its divisors is an integer number (208208).

2^2991429 is an apocalyptic number.

It is an amenable number.

2991429 is a deficient number, since it is larger than the sum of its proper divisors (2005563).

2991429 is a wasteful number, since it uses less digits than its factorization.

2991429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 574 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 2991429 is about 1729.5748032392. The cubic root of 2991429 is about 144.0874757854.

It can be divided in two parts, 299142 and 9, that added together give a triangular number (299151 = T₇₇₃).

The spelling of 2991429 in words is "two million, nine hundred ninety-one thousand, four hundred twenty-nine".