1673865061 has 8 divisors (see below), whose sum is σ = 1829700000. Its totient is φ = 1518641040.

The previous prime is 1673865047. The next prime is 1673865073. The reversal of 1673865061 is 1605683761.

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 1673865061 - 2⁵ = 1673865029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1673864999 and 1673865017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1673865031) 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, 146986 + ... + 157963.

It is an arithmetic number, because the mean of its divisors is an integer number (228712500).

Almost surely, 2^1673865061 is an apocalyptic number.

1673865061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1673865061 is a deficient number, since it is larger than the sum of its proper divisors (155834939).

1673865061 is a wasteful number, since it uses less digits than its factorization.

1673865061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305459.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 1673865061 is about 40912.8960231368. The cubic root of 1673865061 is about 1187.3355779885.

The spelling of 1673865061 in words is "one billion, six hundred seventy-three million, eight hundred sixty-five thousand, sixty-one".