87492261 has 16 divisors (see below), whose sum is σ = 120750080. Its totient is φ = 56291760.

The previous prime is 87492227. The next prime is 87492281. The reversal of 87492261 is 16229478.

It is not a de Polignac number, because 87492261 - 2¹¹ = 87490213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87492211) 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 in 15 ways as a sum of consecutive naturals, for example, 39756 + ... + 41898.

It is an arithmetic number, because the mean of its divisors is an integer number (7546880).

Almost surely, 2^87492261 is an apocalyptic number.

It is an amenable number.

87492261 is a deficient number, since it is larger than the sum of its proper divisors (33257819).

87492261 is a wasteful number, since it uses less digits than its factorization.

87492261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2616.

The product of its digits is 48384, while the sum is 39.

The square root of 87492261 is about 9353.7297908374. The cubic root of 87492261 is about 443.9389119348.

The spelling of 87492261 in words is "eighty-seven million, four hundred ninety-two thousand, two hundred sixty-one".