87476131 has 2 divisors, whose sum is σ = 87476132. Its totient is φ = 87476130.

The previous prime is 87476117. The next prime is 87476183. The reversal of 87476131 is 13167478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87476131 - 2²³ = 79087523 is a prime.

It is a super-2 number, since 2×87476131² = 15304146989458322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87476531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43738065 + 43738066.

It is an arithmetic number, because the mean of its divisors is an integer number (43738066).

Almost surely, 2^87476131 is an apocalyptic number.

87476131 is a deficient number, since it is larger than the sum of its proper divisors (1).

87476131 is an equidigital number, since it uses as much as digits as its factorization.

87476131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 37.

The square root of 87476131 is about 9352.8675281969. The cubic root of 87476131 is about 443.9116288560.

It can be divided in two parts, 8747 and 6131, that added together give a triangular number (14878 = T₁₇₂).

The spelling of 87476131 in words is "eighty-seven million, four hundred seventy-six thousand, one hundred thirty-one".