3997827365 has 16 divisors (see below), whose sum is σ = 5586185088. Its totient is φ = 2689642176.

The previous prime is 3997827343. The next prime is 3997827377. The reversal of 3997827365 is 5637287993.

It is a cyclic number.

It is not a de Polignac number, because 3997827365 - 2¹⁴ = 3997810981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1075727 + ... + 1079436.

It is an arithmetic number, because the mean of its divisors is an integer number (349136568).

Almost surely, 2^3997827365 is an apocalyptic number.

3997827365 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3997827365 is a deficient number, since it is larger than the sum of its proper divisors (1588357723).

3997827365 is a wasteful number, since it uses less digits than its factorization.

3997827365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155228.

The product of its digits is 17146080, while the sum is 59.

The square root of 3997827365 is about 63228.3746825743. The cubic root of 3997827365 is about 1587.1135963269.

The spelling of 3997827365 in words is "three billion, nine hundred ninety-seven million, eight hundred twenty-seven thousand, three hundred sixty-five".