890429 has 2 divisors, whose sum is σ = 890430. Its totient is φ = 890428.

The previous prime is 890419. The next prime is 890437. The reversal of 890429 is 924098.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 487204 + 403225 = 698^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 890429 - 2¹⁶ = 824893 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 890395 and 890404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (890419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 445214 + 445215.

It is an arithmetic number, because the mean of its divisors is an integer number (445215).

2⁸⁹⁰⁴²⁹ is an apocalyptic number.

It is an amenable number.

890429 is a deficient number, since it is larger than the sum of its proper divisors (1).

890429 is an equidigital number, since it uses as much as digits as its factorization.

890429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 890429 is about 943.6254553582. The cubic root of 890429 is about 96.2054699281.

The spelling of 890429 in words is "eight hundred ninety thousand, four hundred twenty-nine".