87743745 has 24 divisors (see below), whose sum is σ = 153518976. Its totient is φ = 46356768.

The previous prime is 87743707. The next prime is 87743753. The reversal of 87743745 is 54734778.

It is not a de Polignac number, because 87743745 - 2⁸ = 87743489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 87743745.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4297 + ... + 13926.

It is an arithmetic number, because the mean of its divisors is an integer number (6396624).

Almost surely, 2^87743745 is an apocalyptic number.

It is an amenable number.

87743745 is a deficient number, since it is larger than the sum of its proper divisors (65775231).

87743745 is a wasteful number, since it uses less digits than its factorization.

87743745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18341 (or 18338 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 87743745 is about 9367.1631244470. The cubic root of 87743745 is about 444.3638513704.

It can be divided in two parts, 87743 and 745, that added together give a palindrome (88488).

The spelling of 87743745 in words is "eighty-seven million, seven hundred forty-three thousand, seven hundred forty-five".