45648397 has 2 divisors, whose sum is σ = 45648398. Its totient is φ = 45648396.

The previous prime is 45648389. The next prime is 45648479. The reversal of 45648397 is 79384654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35593156 + 10055241 = 5966^2 + 3171^2 .

It is a cyclic number.

It is not a de Polignac number, because 45648397 - 2³ = 45648389 is a prime.

It is a super-2 number, since 2×45648397² = 4167552297339218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45648377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22824198 + 22824199.

It is an arithmetic number, because the mean of its divisors is an integer number (22824199).

Almost surely, 2^45648397 is an apocalyptic number.

It is an amenable number.

45648397 is a deficient number, since it is larger than the sum of its proper divisors (1).

45648397 is an equidigital number, since it uses as much as digits as its factorization.

45648397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 46.

The square root of 45648397 is about 6756.3597447146. The cubic root of 45648397 is about 357.3895451554.

The spelling of 45648397 in words is "forty-five million, six hundred forty-eight thousand, three hundred ninety-seven".