87061427 has 2 divisors, whose sum is σ = 87061428. Its totient is φ = 87061426.

The previous prime is 87061411. The next prime is 87061433. The reversal of 87061427 is 72416078.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87061427 - 2⁴ = 87061411 is a prime.

It is not a weakly prime, because it can be changed into another prime (87061027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43530713 + 43530714.

It is an arithmetic number, because the mean of its divisors is an integer number (43530714).

Almost surely, 2^87061427 is an apocalyptic number.

87061427 is a deficient number, since it is larger than the sum of its proper divisors (1).

87061427 is an equidigital number, since it uses as much as digits as its factorization.

87061427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 87061427 is about 9330.6713048955. The cubic root of 87061427 is about 443.2090234444.

The spelling of 87061427 in words is "eighty-seven million, sixty-one thousand, four hundred twenty-seven".