48397309 has 2 divisors, whose sum is σ = 48397310. Its totient is φ = 48397308.

The previous prime is 48397301. The next prime is 48397333. The reversal of 48397309 is 90379384.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42380100 + 6017209 = 6510^2 + 2453^2 .

It is a cyclic number.

It is not a de Polignac number, because 48397309 - 2³ = 48397301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48397301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24198654 + 24198655.

It is an arithmetic number, because the mean of its divisors is an integer number (24198655).

Almost surely, 2^48397309 is an apocalyptic number.

It is an amenable number.

48397309 is a deficient number, since it is larger than the sum of its proper divisors (1).

48397309 is an equidigital number, since it uses as much as digits as its factorization.

48397309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 48397309 is about 6956.8174476552. The cubic root of 48397309 is about 364.4240845762.

The spelling of 48397309 in words is "forty-eight million, three hundred ninety-seven thousand, three hundred nine".