87723135 has 16 divisors (see below), whose sum is σ = 155952480. Its totient is φ = 46785600.

The previous prime is 87723131. The next prime is 87723137. The reversal of 87723135 is 53132778.

It is not a de Polignac number, because 87723135 - 2² = 87723131 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 87723135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87723131) 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, 324766 + ... + 325035.

It is an arithmetic number, because the mean of its divisors is an integer number (9747030).

Almost surely, 2^87723135 is an apocalyptic number.

87723135 is a deficient number, since it is larger than the sum of its proper divisors (68229345).

87723135 is a wasteful number, since it uses less digits than its factorization.

87723135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649815 (or 649809 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 87723135 is about 9366.0629402113. The cubic root of 87723135 is about 444.3290566541.

The spelling of 87723135 in words is "eighty-seven million, seven hundred twenty-three thousand, one hundred thirty-five".