87199250 has 32 divisors (see below), whose sum is σ = 163790640. Its totient is φ = 34761600.

The previous prime is 87199247. The next prime is 87199253. The reversal of 87199250 is 5299178.

It is an interprime number because it is at equal distance from previous prime (87199247) and next prime (87199253).

It can be written as a sum of positive squares in 8 ways, for example, as 11282881 + 75916369 = 3359^2 + 8713^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87199198 and 87199207.

It is not an unprimeable number, because it can be changed into a prime (87199253) 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 15 ways as a sum of consecutive naturals, for example, 141944 + ... + 142556.

Almost surely, 2^87199250 is an apocalyptic number.

87199250 is a deficient number, since it is larger than the sum of its proper divisors (76591390).

87199250 is a wasteful number, since it uses less digits than its factorization.

87199250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 87199250 is about 9338.0538657688. The cubic root of 87199250 is about 443.4427748478.

The spelling of 87199250 in words is "eighty-seven million, one hundred ninety-nine thousand, two hundred fifty".