87445943 has 16 divisors (see below), whose sum is σ = 101134656. Its totient is φ = 74887680.

The previous prime is 87445937. The next prime is 87445951. The reversal of 87445943 is 34954478.

It is a cyclic number.

It is not a de Polignac number, because 87445943 - 2¹² = 87441847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87445894 and 87445903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87445903) 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, 12905 + ... + 18477.

It is an arithmetic number, because the mean of its divisors is an integer number (6320916).

Almost surely, 2^87445943 is an apocalyptic number.

87445943 is a deficient number, since it is larger than the sum of its proper divisors (13688713).

87445943 is a wasteful number, since it uses less digits than its factorization.

87445943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5674.

The product of its digits is 483840, while the sum is 44.

The square root of 87445943 is about 9351.2535523319. The cubic root of 87445943 is about 443.8605583681.

It can be divided in two parts, 87445 and 943, that added together give a palindrome (88388).

The spelling of 87445943 in words is "eighty-seven million, four hundred forty-five thousand, nine hundred forty-three".