87371269 has 2 divisors, whose sum is σ = 87371270. Its totient is φ = 87371268.

The previous prime is 87371267. The next prime is 87371281. The reversal of 87371269 is 96217378.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85340644 + 2030625 = 9238^2 + 1425^2 .

It is a cyclic number.

It is not a de Polignac number, because 87371269 - 2¹ = 87371267 is a prime.

It is a super-2 number, since 2×87371269² = 15267477293340722, which contains 22 as substring.

Together with 87371267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87371267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43685634 + 43685635.

It is an arithmetic number, because the mean of its divisors is an integer number (43685635).

Almost surely, 2^87371269 is an apocalyptic number.

It is an amenable number.

87371269 is a deficient number, since it is larger than the sum of its proper divisors (1).

87371269 is an equidigital number, since it uses as much as digits as its factorization.

87371269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 43.

The square root of 87371269 is about 9347.2599728477. The cubic root of 87371269 is about 443.7341782628.

The spelling of 87371269 in words is "eighty-seven million, three hundred seventy-one thousand, two hundred sixty-nine".