945080639 has 2 divisors, whose sum is σ = 945080640. Its totient is φ = 945080638.

The previous prime is 945080629. The next prime is 945080641. The reversal of 945080639 is 936080549.

It is a strong prime.

It is an emirp because it is prime and its reverse (936080549) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 945080639 - 2²⁸ = 676645183 is a prime.

Together with 945080641, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 945080639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (945080629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472540319 + 472540320.

It is an arithmetic number, because the mean of its divisors is an integer number (472540320).

Almost surely, 2^945080639 is an apocalyptic number.

945080639 is a deficient number, since it is larger than the sum of its proper divisors (1).

945080639 is an equidigital number, since it uses as much as digits as its factorization.

945080639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 945080639 is about 30742.1638633327. The cubic root of 945080639 is about 981.3478050157.

The spelling of 945080639 in words is "nine hundred forty-five million, eighty thousand, six hundred thirty-nine".