3698261281 has 16 divisors (see below), whose sum is σ = 4484971008. Its totient is φ = 3003321600.

The previous prime is 3698261269. The next prime is 3698261293. The reversal of 3698261281 is 1821628963.

It is an interprime number because it is at equal distance from previous prime (3698261269) and next prime (3698261293).

It is a cyclic number.

It is not a de Polignac number, because 3698261281 - 2¹⁹ = 3697736993 is a prime.

It is a super-2 number, since 2×3698261281² = 27354273005087521922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3698261201) 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 in 15 ways as a sum of consecutive naturals, for example, 412696 + ... + 421561.

It is an arithmetic number, because the mean of its divisors is an integer number (280310688).

Almost surely, 2^3698261281 is an apocalyptic number.

3698261281 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3698261281 is a deficient number, since it is larger than the sum of its proper divisors (786709727).

3698261281 is a wasteful number, since it uses less digits than its factorization.

3698261281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834312.

The product of its digits is 248832, while the sum is 46.

The square root of 3698261281 is about 60813.3314413871. The cubic root of 3698261281 is about 1546.4380617081.

The spelling of 3698261281 in words is "three billion, six hundred ninety-eight million, two hundred sixty-one thousand, two hundred eighty-one".