2645429 has 2 divisors, whose sum is σ = 2645430. Its totient is φ = 2645428.

The previous prime is 2645417. The next prime is 2645431. The reversal of 2645429 is 9245462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2002225 + 643204 = 1415^2 + 802^2 .

It is a cyclic number.

It is not a de Polignac number, because 2645429 - 2⁴ = 2645413 is a prime.

Together with 2645431, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2645395 and 2645404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2645479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322714 + 1322715.

It is an arithmetic number, because the mean of its divisors is an integer number (1322715).

2^2645429 is an apocalyptic number.

It is an amenable number.

2645429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645429 is an equidigital number, since it uses as much as digits as its factorization.

2645429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 2645429 is about 1626.4774821681. The cubic root of 2645429 is about 138.3031388430.

The spelling of 2645429 in words is "two million, six hundred forty-five thousand, four hundred twenty-nine".