87262849 has 4 divisors (see below), whose sum is σ = 88162564. Its totient is φ = 86363136.

The previous prime is 87262823. The next prime is 87262871. The reversal of 87262849 is 94826278.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51022449 + 36240400 = 7143^2 + 6020^2 .

It is a cyclic number.

It is not a de Polignac number, because 87262849 - 2⁵ = 87262817 is a prime.

It is a super-2 number, since 2×87262849² = 15229609631193602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87262799 and 87262808.

It is not an unprimeable number, because it can be changed into a prime (87262249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449712 + ... + 449905.

It is an arithmetic number, because the mean of its divisors is an integer number (22040641).

Almost surely, 2^87262849 is an apocalyptic number.

It is an amenable number.

87262849 is a deficient number, since it is larger than the sum of its proper divisors (899715).

87262849 is an equidigital number, since it uses as much as digits as its factorization.

87262849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899714.

The product of its digits is 387072, while the sum is 46.

The square root of 87262849 is about 9341.4586120156. The cubic root of 87262849 is about 443.5505573623.

The spelling of 87262849 in words is "eighty-seven million, two hundred sixty-two thousand, eight hundred forty-nine".