64952749 has 2 divisors, whose sum is σ = 64952750. Its totient is φ = 64952748.

The previous prime is 64952737. The next prime is 64952809. The reversal of 64952749 is 94725946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53187849 + 11764900 = 7293^2 + 3430^2 .

It is a cyclic number.

It is not a de Polignac number, because 64952749 - 2¹¹ = 64950701 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64952699 and 64952708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64958749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32476374 + 32476375.

It is an arithmetic number, because the mean of its divisors is an integer number (32476375).

Almost surely, 2^64952749 is an apocalyptic number.

It is an amenable number.

64952749 is a deficient number, since it is larger than the sum of its proper divisors (1).

64952749 is an equidigital number, since it uses as much as digits as its factorization.

64952749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 64952749 is about 8059.3268329309. The cubic root of 64952749 is about 401.9751249016.

The spelling of 64952749 in words is "sixty-four million, nine hundred fifty-two thousand, seven hundred forty-nine".