1673620347 has 16 divisors (see below), whose sum is σ = 2578936320. Its totient is φ = 945607872.

The previous prime is 1673620337. The next prime is 1673620349. The reversal of 1673620347 is 7430263761.

It is not a de Polignac number, because 1673620347 - 2¹⁰ = 1673619323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1673620349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445863 + ... + 449600.

It is an arithmetic number, because the mean of its divisors is an integer number (161183520).

Almost surely, 2^1673620347 is an apocalyptic number.

1673620347 is a deficient number, since it is larger than the sum of its proper divisors (905315973).

1673620347 is an equidigital number, since it uses as much as digits as its factorization.

1673620347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895562.

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 1673620347 is about 40909.9052431071. The cubic root of 1673620347 is about 1187.2777135473.

The spelling of 1673620347 in words is "one billion, six hundred seventy-three million, six hundred twenty thousand, three hundred forty-seven".