3661098939 has 16 divisors (see below), whose sum is σ = 5610880800. Its totient is φ = 2356568928.

The previous prime is 3661098919. The next prime is 3661098949. The reversal of 3661098939 is 9398901663.

It is not a de Polignac number, because 3661098939 - 2⁵ = 3661098907 is a prime.

It is a super-4 number, since 4×3661098939⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (3661098919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2337084 + ... + 2338649.

It is an arithmetic number, because the mean of its divisors is an integer number (350680050).

Almost surely, 2^3661098939 is an apocalyptic number.

3661098939 is a deficient number, since it is larger than the sum of its proper divisors (1949781861).

3661098939 is a wasteful number, since it uses less digits than its factorization.

3661098939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675771 (or 4675765 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The square root of 3661098939 is about 60507.0156180257. The cubic root of 3661098939 is about 1541.2407691800.

The spelling of 3661098939 in words is "three billion, six hundred sixty-one million, ninety-eight thousand, nine hundred thirty-nine".