87709743 has 16 divisors (see below), whose sum is σ = 141753600. Its totient is φ = 53157240.

The previous prime is 87709703. The next prime is 87709747. The reversal of 87709743 is 34790778.

It is not a de Polignac number, because 87709743 - 2⁸ = 87709487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87709747) 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, 147363 + ... + 147956.

It is an arithmetic number, because the mean of its divisors is an integer number (8859600).

Almost surely, 2^87709743 is an apocalyptic number.

87709743 is a deficient number, since it is larger than the sum of its proper divisors (54043857).

87709743 is a wasteful number, since it uses less digits than its factorization.

87709743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295339 (or 295333 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 87709743 is about 9365.3479913989. The cubic root of 87709743 is about 444.3064447644.

The spelling of 87709743 in words is "eighty-seven million, seven hundred nine thousand, seven hundred forty-three".