87242936 has 24 divisors (see below), whose sum is σ = 179805360. Its totient is φ = 39655440.

The previous prime is 87242921. The next prime is 87242941. The reversal of 87242936 is 63924278.

It is a happy number.

It is a super-2 number, since 2×87242936² = 15222659763800192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87242893 and 87242902.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 44096 + ... + 46031.

It is an arithmetic number, because the mean of its divisors is an integer number (7491890).

Almost surely, 2^87242936 is an apocalyptic number.

It is an amenable number.

87242936 is an abundant number, since it is smaller than the sum of its proper divisors (92562424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87242936 is a wasteful number, since it uses less digits than its factorization.

87242936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90155 (or 90140 counting only the distinct ones).

The product of its digits is 145152, while the sum is 41.

The square root of 87242936 is about 9340.3927112301. The cubic root of 87242936 is about 443.5168160307.

The spelling of 87242936 in words is "eighty-seven million, two hundred forty-two thousand, nine hundred thirty-six".