2906397 has 12 divisors (see below), whose sum is σ = 4521244. Its totient is φ = 1788480.

The previous prime is 2906381. The next prime is 2906401. The reversal of 2906397 is 7936092.

2906397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 301401 + 2604996 = 549^2 + 1614^2 .

It is not a de Polignac number, because 2906397 - 2⁴ = 2906381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2906347) 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 11 ways as a sum of consecutive naturals, for example, 12304 + ... + 12537.

2^2906397 is an apocalyptic number.

It is an amenable number.

2906397 is a deficient number, since it is larger than the sum of its proper divisors (1614847).

2906397 is a wasteful number, since it uses less digits than its factorization.

2906397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24860 (or 24857 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 2906397 is about 1704.8158258299. The cubic root of 2906397 is about 142.7090928595.

The spelling of 2906397 in words is "two million, nine hundred six thousand, three hundred ninety-seven".