32749649 has 2 divisors, whose sum is σ = 32749650. Its totient is φ = 32749648.

The previous prime is 32749643. The next prime is 32749657. The reversal of 32749649 is 94694723.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31719424 + 1030225 = 5632^2 + 1015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32749649 is a prime.

It is not a weakly prime, because it can be changed into another prime (32749643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16374824 + 16374825.

It is an arithmetic number, because the mean of its divisors is an integer number (16374825).

Almost surely, 2^32749649 is an apocalyptic number.

It is an amenable number.

32749649 is a deficient number, since it is larger than the sum of its proper divisors (1).

32749649 is an equidigital number, since it uses as much as digits as its factorization.

32749649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 44.

The square root of 32749649 is about 5722.7309040352. The cubic root of 32749649 is about 319.9402525171.

The spelling of 32749649 in words is "thirty-two million, seven hundred forty-nine thousand, six hundred forty-nine".