2925638869 has 2 divisors, whose sum is σ = 2925638870. Its totient is φ = 2925638868.

The previous prime is 2925638839. The next prime is 2925638899. The reversal of 2925638869 is 9688365292.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2925638839) and next prime (2925638899).

It can be written as a sum of positive squares in only one way, i.e., 1682230225 + 1243408644 = 41015^2 + 35262^2 .

It is a cyclic number.

It is not a de Polignac number, because 2925638869 - 2⁹ = 2925638357 is a prime.

It is a super-2 number, since 2×2925638869² = 17118725583607198322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2925638839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1462819434 + 1462819435.

It is an arithmetic number, because the mean of its divisors is an integer number (1462819435).

Almost surely, 2^2925638869 is an apocalyptic number.

It is an amenable number.

2925638869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2925638869 is an equidigital number, since it uses as much as digits as its factorization.

2925638869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11197440, while the sum is 58.

The square root of 2925638869 is about 54089.1751554782. The cubic root of 2925638869 is about 1430.2333668074.

The spelling of 2925638869 in words is "two billion, nine hundred twenty-five million, six hundred thirty-eight thousand, eight hundred sixty-nine".