949987399 has 2 divisors, whose sum is σ = 949987400. Its totient is φ = 949987398.

The previous prime is 949987391. The next prime is 949987447. The reversal of 949987399 is 993789949.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 949987399 - 2³ = 949987391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (949987391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474993699 + 474993700.

It is an arithmetic number, because the mean of its divisors is an integer number (474993700).

Almost surely, 2^949987399 is an apocalyptic number.

949987399 is a deficient number, since it is larger than the sum of its proper divisors (1).

949987399 is an equidigital number, since it uses as much as digits as its factorization.

949987399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39680928, while the sum is 67.

The square root of 949987399 is about 30821.8655989543. The cubic root of 949987399 is about 983.0432260224.

The spelling of 949987399 in words is "nine hundred forty-nine million, nine hundred eighty-seven thousand, three hundred ninety-nine".