87861326 has 16 divisors (see below), whose sum is σ = 150833760. Its totient is φ = 37601280.

The previous prime is 87861299. The next prime is 87861343. The reversal of 87861326 is 62316878.

It is a happy number.

It is a super-2 number, since 2×87861326² = 15439225212956552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6686 + ... + 14846.

It is an arithmetic number, because the mean of its divisors is an integer number (9427110).

Almost surely, 2^87861326 is an apocalyptic number.

87861326 is a deficient number, since it is larger than the sum of its proper divisors (62972434).

87861326 is a wasteful number, since it uses less digits than its factorization.

87861326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8939.

The product of its digits is 96768, while the sum is 41.

The square root of 87861326 is about 9373.4372564177. The cubic root of 87861326 is about 444.5622526913.

The spelling of 87861326 in words is "eighty-seven million, eight hundred sixty-one thousand, three hundred twenty-six".