3705928649 has 2 divisors, whose sum is σ = 3705928650. Its totient is φ = 3705928648.

The previous prime is 3705928627. The next prime is 3705928687. The reversal of 3705928649 is 9468295073.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2310532624 + 1395396025 = 48068^2 + 37355^2 .

It is a cyclic number.

It is not a de Polignac number, because 3705928649 - 2²⁰ = 3704880073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3705928649.

It is not a weakly prime, because it can be changed into another prime (3705928619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1852964324 + 1852964325.

It is an arithmetic number, because the mean of its divisors is an integer number (1852964325).

Almost surely, 2^3705928649 is an apocalyptic number.

It is an amenable number.

3705928649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3705928649 is an equidigital number, since it uses as much as digits as its factorization.

3705928649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The square root of 3705928649 is about 60876.3389914341. The cubic root of 3705928649 is about 1547.5060342893.

The spelling of 3705928649 in words is "three billion, seven hundred five million, nine hundred twenty-eight thousand, six hundred forty-nine".