87084131 has 8 divisors (see below), whose sum is σ = 88368384. Its totient is φ = 85808520.

The previous prime is 87084113. The next prime is 87084169. The reversal of 87084131 is 13148078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87084131 - 2¹⁰ = 87083107 is a prime.

It is a super-2 number, since 2×87084131² = 15167291744050322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87084031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19730 + ... + 23736.

It is an arithmetic number, because the mean of its divisors is an integer number (11046048).

Almost surely, 2^87084131 is an apocalyptic number.

87084131 is a deficient number, since it is larger than the sum of its proper divisors (1284253).

87084131 is a wasteful number, since it uses less digits than its factorization.

87084131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4321.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 87084131 is about 9331.8878583061. The cubic root of 87084131 is about 443.2475469843.

The spelling of 87084131 in words is "eighty-seven million, eighty-four thousand, one hundred thirty-one".