87358724 has 6 divisors (see below), whose sum is σ = 152877774. Its totient is φ = 43679360.

The previous prime is 87358723. The next prime is 87358781. The reversal of 87358724 is 42785378.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 76912900 + 10445824 = 8770^2 + 3232^2 .

It is not an unprimeable number, because it can be changed into a prime (87358721) by changing a digit.

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 as a sum of consecutive naturals, namely, 10919837 + ... + 10919844.

It is an arithmetic number, because the mean of its divisors is an integer number (25479629).

Almost surely, 2^87358724 is an apocalyptic number.

It is an amenable number.

87358724 is a deficient number, since it is larger than the sum of its proper divisors (65519050).

87358724 is a wasteful number, since it uses less digits than its factorization.

87358724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21839685 (or 21839683 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

The square root of 87358724 is about 9346.5888964905. The cubic root of 87358724 is about 443.7129397338.

The spelling of 87358724 in words is "eighty-seven million, three hundred fifty-eight thousand, seven hundred twenty-four".