1673620889 has 8 divisors (see below), whose sum is σ = 1720783488. Its totient is φ = 1626559920.

The previous prime is 1673620877. The next prime is 1673620937. The reversal of 1673620889 is 9880263761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1673620889 - 2¹² = 1673616793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1673620489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8624 + ... + 58494.

It is an arithmetic number, because the mean of its divisors is an integer number (215097936).

Almost surely, 2^1673620889 is an apocalyptic number.

It is an amenable number.

1673620889 is a deficient number, since it is larger than the sum of its proper divisors (47162599).

1673620889 is an equidigital number, since it uses as much as digits as its factorization.

1673620889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50815.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 1673620889 is about 40909.9118674191. The cubic root of 1673620889 is about 1187.2778417135.

The spelling of 1673620889 in words is "one billion, six hundred seventy-three million, six hundred twenty thousand, eight hundred eighty-nine".