948907639 has 2 divisors, whose sum is σ = 948907640. Its totient is φ = 948907638.

The previous prime is 948907627. The next prime is 948907691. The reversal of 948907639 is 936709849.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 948907639 - 2⁷ = 948907511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 948907639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (948907699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474453819 + 474453820.

It is an arithmetic number, because the mean of its divisors is an integer number (474453820).

Almost surely, 2^948907639 is an apocalyptic number.

948907639 is a deficient number, since it is larger than the sum of its proper divisors (1).

948907639 is an equidigital number, since it uses as much as digits as its factorization.

948907639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The square root of 948907639 is about 30804.3444825564. The cubic root of 948907639 is about 982.6706410249.

The spelling of 948907639 in words is "nine hundred forty-eight million, nine hundred seven thousand, six hundred thirty-nine".