2906431 has 4 divisors (see below), whose sum is σ = 3170664. Its totient is φ = 2642200.

The previous prime is 2906429. The next prime is 2906443. The reversal of 2906431 is 1346092.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2906431 - 2¹ = 2906429 is a prime.

It is a super-2 number, since 2×2906431² = 16894682315522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2906396 and 2906405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2906401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132100 + ... + 132121.

It is an arithmetic number, because the mean of its divisors is an integer number (792666).

2^2906431 is an apocalyptic number.

2906431 is a deficient number, since it is larger than the sum of its proper divisors (264233).

2906431 is a wasteful number, since it uses less digits than its factorization.

2906431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264232.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2906431 is about 1704.8257975523. The cubic root of 2906431 is about 142.7096493435.

The spelling of 2906431 in words is "two million, nine hundred six thousand, four hundred thirty-one".