87250306 has 48 divisors (see below), whose sum is σ = 159798528. Its totient is φ = 35380800.

The previous prime is 87250297. The next prime is 87250309. The reversal of 87250306 is 60305278.

It is a super-2 number, since 2×87250306² = 15225231794187272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (87250309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114880 + ... + 115636.

It is an arithmetic number, because the mean of its divisors is an integer number (3329136).

Almost surely, 2^87250306 is an apocalyptic number.

87250306 is a deficient number, since it is larger than the sum of its proper divisors (72548222).

87250306 is a wasteful number, since it uses less digits than its factorization.

87250306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 87250306 is about 9340.7872259248. The cubic root of 87250306 is about 443.5293046326.

The spelling of 87250306 in words is "eighty-seven million, two hundred fifty thousand, three hundred six".