48487709 has 2 divisors, whose sum is σ = 48487710. Its totient is φ = 48487708.

The previous prime is 48487693. The next prime is 48487781. The reversal of 48487709 is 90778484.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26491609 + 21996100 = 5147^2 + 4690^2 .

It is a cyclic number.

It is not a de Polignac number, because 48487709 - 2⁴ = 48487693 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48487609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24243854 + 24243855.

It is an arithmetic number, because the mean of its divisors is an integer number (24243855).

Almost surely, 2^48487709 is an apocalyptic number.

It is an amenable number.

48487709 is a deficient number, since it is larger than the sum of its proper divisors (1).

48487709 is an equidigital number, since it uses as much as digits as its factorization.

48487709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 48487709 is about 6963.3116403045. The cubic root of 48487709 is about 364.6508426852.

The spelling of 48487709 in words is "forty-eight million, four hundred eighty-seven thousand, seven hundred nine".