2906399 has 4 divisors (see below), whose sum is σ = 2955720. Its totient is φ = 2857080.

The previous prime is 2906381. The next prime is 2906401. The reversal of 2906399 is 9936092.

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

It is a cyclic number.

It is not a de Polignac number, because 2906399 - 2⁸ = 2906143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2906999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24572 + ... + 24689.

It is an arithmetic number, because the mean of its divisors is an integer number (738930).

2^2906399 is an apocalyptic number.

2906399 is a deficient number, since it is larger than the sum of its proper divisors (49321).

2906399 is an equidigital number, since it uses as much as digits as its factorization.

2906399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49320.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 2906399 is about 1704.8164124034. The cubic root of 2906399 is about 142.7091255940.

The spelling of 2906399 in words is "two million, nine hundred six thousand, three hundred ninety-nine".