3690772805 has 18 divisors (see below), whose sum is σ = 4489903158. Its totient is φ = 2912516800.

The previous prime is 3690772793. The next prime is 3690772817. The reversal of 3690772805 is 5082770963.

It is an interprime number because it is at equal distance from previous prime (3690772793) and next prime (3690772817).

It can be written as a sum of positive squares in 9 ways, for example, as 569204164 + 3121568641 = 23858^2 + 55871^2 .

It is not a de Polignac number, because 3690772805 - 2⁶ = 3690772741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3690772805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13720211 + ... + 13720479.

Almost surely, 2^3690772805 is an apocalyptic number.

It is an amenable number.

3690772805 is a deficient number, since it is larger than the sum of its proper divisors (799130353).

3690772805 is an frugal number, since it uses more digits than its factorization.

3690772805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 3690772805 is about 60751.7308806918. The cubic root of 3690772805 is about 1545.3935808451.

The spelling of 3690772805 in words is "three billion, six hundred ninety million, seven hundred seventy-two thousand, eight hundred five".