87621259 has 8 divisors (see below), whose sum is σ = 95776560. Its totient is φ = 79497600.

The previous prime is 87621257. The next prime is 87621263. The reversal of 87621259 is 95212678.

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

It is a cyclic number.

It is not a de Polignac number, because 87621259 - 2¹ = 87621257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87621257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1914 + ... + 13375.

It is an arithmetic number, because the mean of its divisors is an integer number (11972070).

Almost surely, 2^87621259 is an apocalyptic number.

87621259 is a deficient number, since it is larger than the sum of its proper divisors (8155301).

87621259 is a wasteful number, since it uses less digits than its factorization.

87621259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15821.

The product of its digits is 60480, while the sum is 40.

The square root of 87621259 is about 9360.6227891097. The cubic root of 87621259 is about 444.1569849748.

It can be divided in two parts, 8 and 7621259, that added together give a palindrome (7621267).

The spelling of 87621259 in words is "eighty-seven million, six hundred twenty-one thousand, two hundred fifty-nine".