1632749 has 2 divisors, whose sum is σ = 1632750. Its totient is φ = 1632748.

The previous prime is 1632703. The next prime is 1632751. The reversal of 1632749 is 9472361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1322500 + 310249 = 1150^2 + 557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1632749 is a prime.

Together with 1632751, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1632769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 816374 + 816375.

It is an arithmetic number, because the mean of its divisors is an integer number (816375).

2^1632749 is an apocalyptic number.

It is an amenable number.

1632749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1632749 is an equidigital number, since it uses as much as digits as its factorization.

1632749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 1632749 is about 1277.7906714325. The cubic root of 1632749 is about 117.7533149687.

The spelling of 1632749 in words is "one million, six hundred thirty-two thousand, seven hundred forty-nine".