1829997 has 12 divisors (see below), whose sum is σ = 2846844. Its totient is φ = 1126080.

The previous prime is 1829963. The next prime is 1830011. The reversal of 1829997 is 7999281.

It can be written as a sum of positive squares in 2 ways, for example, as 1212201 + 617796 = 1101^2 + 786^2 .

It is not a de Polignac number, because 1829997 - 2¹⁰ = 1828973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1829197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7704 + ... + 7937.

It is an arithmetic number, because the mean of its divisors is an integer number (237237).

2^1829997 is an apocalyptic number.

It is an amenable number.

1829997 is a deficient number, since it is larger than the sum of its proper divisors (1016847).

1829997 is a wasteful number, since it uses less digits than its factorization.

1829997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15660 (or 15657 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 1829997 is about 1352.7738170145. The cubic root of 1829997 is about 122.3160532299.

The spelling of 1829997 in words is "one million, eight hundred twenty-nine thousand, nine hundred ninety-seven".