87239027 has 2 divisors, whose sum is σ = 87239028. Its totient is φ = 87239026.

The previous prime is 87238999. The next prime is 87239029. The reversal of 87239027 is 72093278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87239027 - 2⁸ = 87238771 is a prime.

It is a super-2 number, since 2×87239027² = 15221295663813458, which contains 22 as substring.

Together with 87239029, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87239029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43619513 + 43619514.

It is an arithmetic number, because the mean of its divisors is an integer number (43619514).

Almost surely, 2^87239027 is an apocalyptic number.

87239027 is a deficient number, since it is larger than the sum of its proper divisors (1).

87239027 is an equidigital number, since it uses as much as digits as its factorization.

87239027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 87239027 is about 9340.1834564424. The cubic root of 87239027 is about 443.5101918721.

The spelling of 87239027 in words is "eighty-seven million, two hundred thirty-nine thousand, twenty-seven".