87040826 has 8 divisors (see below), whose sum is σ = 130623060. Its totient is φ = 43499808.

The previous prime is 87040819. The next prime is 87040829. The reversal of 87040826 is 62804078.

It can be written as a sum of positive squares in 2 ways, for example, as 80013025 + 7027801 = 8945^2 + 2651^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×87040826² = 15152210781524552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87040829) 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, 4331 + ... + 13886.

Almost surely, 2^87040826 is an apocalyptic number.

87040826 is a deficient number, since it is larger than the sum of its proper divisors (43582234).

87040826 is a wasteful number, since it uses less digits than its factorization.

87040826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20608.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 87040826 is about 9329.5672997197. The cubic root of 87040826 is about 443.1740624225.

The spelling of 87040826 in words is "eighty-seven million, forty thousand, eight hundred twenty-six".