1802039 has 2 divisors, whose sum is σ = 1802040. Its totient is φ = 1802038.

The previous prime is 1802029. The next prime is 1802057. The reversal of 1802039 is 9302081.

It is a weak prime.

It is an emirp because it is prime and its reverse (9302081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1802039 - 2²⁰ = 753463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1802029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 901019 + 901020.

It is an arithmetic number, because the mean of its divisors is an integer number (901020).

2^1802039 is an apocalyptic number.

1802039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1802039 is an equidigital number, since it uses as much as digits as its factorization.

1802039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1802039 is about 1342.4004618593. The cubic root of 1802039 is about 121.6899544672.

The spelling of 1802039 in words is "one million, eight hundred two thousand, thirty-nine".