87730893 has 12 divisors (see below), whose sum is σ = 126825088. Its totient is φ = 58439880.

The previous prime is 87730891. The next prime is 87730913. The reversal of 87730893 is 39803778.

It is not a de Polignac number, because 87730893 - 2¹ = 87730891 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87730891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10596 + ... + 16962.

Almost surely, 2^87730893 is an apocalyptic number.

It is an amenable number.

87730893 is a deficient number, since it is larger than the sum of its proper divisors (39094195).

87730893 is a wasteful number, since it uses less digits than its factorization.

87730893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7904 (or 7901 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 87730893 is about 9366.4770858632. The cubic root of 87730893 is about 444.3421546934.

The spelling of 87730893 in words is "eighty-seven million, seven hundred thirty thousand, eight hundred ninety-three".