1611676349 has 4 divisors (see below), whose sum is σ = 1696501440. Its totient is φ = 1526851260.

The previous prime is 1611676237. The next prime is 1611676369. The reversal of 1611676349 is 9436761161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1611676349 is a prime.

It is a super-3 number, since 3×1611676349³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611676369) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 42412517 + ... + 42412554.

It is an arithmetic number, because the mean of its divisors is an integer number (424125360).

Almost surely, 2^1611676349 is an apocalyptic number.

1611676349 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1611676349 is a deficient number, since it is larger than the sum of its proper divisors (84825091).

1611676349 is an equidigital number, since it uses as much as digits as its factorization.

1611676349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84825090.

The product of its digits is 163296, while the sum is 44.

The square root of 1611676349 is about 40145.6890462725. The cubic root of 1611676349 is about 1172.4453564640.

The spelling of 1611676349 in words is "one billion, six hundred eleven million, six hundred seventy-six thousand, three hundred forty-nine".