48649639 has 2 divisors, whose sum is σ = 48649640. Its totient is φ = 48649638.

The previous prime is 48649619. The next prime is 48649651. The reversal of 48649639 is 93694684.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 48649639 - 2⁵ = 48649607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 48649592 and 48649601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48649619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24324819 + 24324820.

It is an arithmetic number, because the mean of its divisors is an integer number (24324820).

Almost surely, 2^48649639 is an apocalyptic number.

48649639 is a deficient number, since it is larger than the sum of its proper divisors (1).

48649639 is an equidigital number, since it uses as much as digits as its factorization.

48649639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 49.

The square root of 48649639 is about 6974.9293186383. The cubic root of 48649639 is about 365.0563220774.

The spelling of 48649639 in words is "forty-eight million, six hundred forty-nine thousand, six hundred thirty-nine".