673432887 has 8 divisors (see below), whose sum is σ = 899239536. Its totient is φ = 448290752.

The previous prime is 673432861. The next prime is 673432891. The reversal of 673432887 is 788234376.

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 673432887 - 2¹⁶ = 673367351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673432897) 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, 163758 + ... + 167819.

It is an arithmetic number, because the mean of its divisors is an integer number (112404942).

Almost surely, 2^673432887 is an apocalyptic number.

673432887 is a deficient number, since it is larger than the sum of its proper divisors (225806649).

673432887 is a wasteful number, since it uses less digits than its factorization.

673432887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332257.

The product of its digits is 1354752, while the sum is 48.

The square root of 673432887 is about 25950.5854847246. The cubic root of 673432887 is about 876.5259411782.

It can be divided in two parts, 6734 and 32887, that added together give a triangular number (39621 = T₂₈₁).

The spelling of 673432887 in words is "six hundred seventy-three million, four hundred thirty-two thousand, eight hundred eighty-seven".