8500002949 has 2 divisors, whose sum is σ = 8500002950. Its totient is φ = 8500002948.

The previous prime is 8500002943. The next prime is 8500002977. The reversal of 8500002949 is 9492000058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6228050724 + 2271952225 = 78918^2 + 47665^2 .

It is a cyclic number.

It is not a de Polignac number, because 8500002949 - 2⁷ = 8500002821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8500002943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4250001474 + 4250001475.

It is an arithmetic number, because the mean of its divisors is an integer number (4250001475).

Almost surely, 2^8500002949 is an apocalyptic number.

It is an amenable number.

8500002949 is a deficient number, since it is larger than the sum of its proper divisors (1).

8500002949 is an equidigital number, since it uses as much as digits as its factorization.

8500002949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 8500002949 is about 92195.4605661255. The cubic root of 8500002949 is about 2040.8277869744.

The spelling of 8500002949 in words is "eight billion, five hundred million, two thousand, nine hundred forty-nine".