1676620369 has 4 divisors (see below), whose sum is σ = 1676960496. Its totient is φ = 1676280244.

The previous prime is 1676620367. The next prime is 1676620403. The reversal of 1676620369 is 9630266761.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9630266761 = 233 ⋅41331617.

It is a cyclic number.

It is not a de Polignac number, because 1676620369 - 2¹ = 1676620367 is a prime.

It is a super-2 number, since 2×1676620369² = 5622111723491392322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1676620367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162559 + ... + 172564.

It is an arithmetic number, because the mean of its divisors is an integer number (419240124).

Almost surely, 2^1676620369 is an apocalyptic number.

It is an amenable number.

1676620369 is a deficient number, since it is larger than the sum of its proper divisors (340127).

1676620369 is an equidigital number, since it uses as much as digits as its factorization.

1676620369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340126.

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 1676620369 is about 40946.5550321392. Note that the first 3 decimals coincide. The cubic root of 1676620369 is about 1187.9867021245.

The spelling of 1676620369 in words is "one billion, six hundred seventy-six million, six hundred twenty thousand, three hundred sixty-nine".