87209258 has 8 divisors (see below), whose sum is σ = 132109380. Its totient is φ = 43172800.

The previous prime is 87209251. The next prime is 87209267. The reversal of 87209258 is 85290278.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 58874929 + 28334329 = 7673^2 + 5323^2 .

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

It is not an unprimeable number, because it can be changed into a prime (87209251) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 215663 + ... + 216066.

Almost surely, 2^87209258 is an apocalyptic number.

87209258 is a deficient number, since it is larger than the sum of its proper divisors (44900122).

87209258 is a wasteful number, since it uses less digits than its factorization.

87209258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431832.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 87209258 is about 9338.5897222225. The cubic root of 87209258 is about 443.4597390821.

The spelling of 87209258 in words is "eighty-seven million, two hundred nine thousand, two hundred fifty-eight".