64924397 has 2 divisors, whose sum is σ = 64924398. Its totient is φ = 64924396.

The previous prime is 64924393. The next prime is 64924421. The reversal of 64924397 is 79342946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37319881 + 27604516 = 6109^2 + 5254^2 .

It is a cyclic number.

It is not a de Polignac number, because 64924397 - 2² = 64924393 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 (64924393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32462198 + 32462199.

It is an arithmetic number, because the mean of its divisors is an integer number (32462199).

Almost surely, 2^64924397 is an apocalyptic number.

It is an amenable number.

64924397 is a deficient number, since it is larger than the sum of its proper divisors (1).

64924397 is an equidigital number, since it uses as much as digits as its factorization.

64924397 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 64924397 is about 8057.5676851020. The cubic root of 64924397 is about 401.9166287508.

The spelling of 64924397 in words is "sixty-four million, nine hundred twenty-four thousand, three hundred ninety-seven".