3925477109 has 2 divisors, whose sum is σ = 3925477110. Its totient is φ = 3925477108.

The previous prime is 3925477081. The next prime is 3925477151. The reversal of 3925477109 is 9017745293.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3820476100 + 105001009 = 61810^2 + 10247^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3925477109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3925477609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1962738554 + 1962738555.

It is an arithmetic number, because the mean of its divisors is an integer number (1962738555).

Almost surely, 2^3925477109 is an apocalyptic number.

It is an amenable number.

3925477109 is a deficient number, since it is larger than the sum of its proper divisors (1).

3925477109 is an equidigital number, since it uses as much as digits as its factorization.

3925477109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 3925477109 is about 62653.6280593550. The cubic root of 3925477109 is about 1577.4810459152.

The spelling of 3925477109 in words is "three billion, nine hundred twenty-five million, four hundred seventy-seven thousand, one hundred nine".