3670778249 has 2 divisors, whose sum is σ = 3670778250. Its totient is φ = 3670778248.

The previous prime is 3670778191. The next prime is 3670778263. The reversal of 3670778249 is 9428770763.

3670778249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3241252624 + 429525625 = 56932^2 + 20725^2 .

It is a cyclic number.

It is not a de Polignac number, because 3670778249 - 2¹² = 3670774153 is a prime.

It is a super-2 number, since 2×3670778249² = 26949225906663012002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3670778249.

It is not a weakly prime, because it can be changed into another prime (3670778299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1835389124 + 1835389125.

It is an arithmetic number, because the mean of its divisors is an integer number (1835389125).

Almost surely, 2^3670778249 is an apocalyptic number.

It is an amenable number.

3670778249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3670778249 is an equidigital number, since it uses as much as digits as its factorization.

3670778249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3556224, while the sum is 53.

The square root of 3670778249 is about 60586.9478435744. The cubic root of 3670778249 is about 1542.5978316101.

The spelling of 3670778249 in words is "three billion, six hundred seventy million, seven hundred seventy-eight thousand, two hundred forty-nine".