87613250 has 16 divisors (see below), whose sum is σ = 164012472. Its totient is φ = 35045200.

The previous prime is 87613241. The next prime is 87613259. The reversal of 87613250 is 5231678.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87613241) and next prime (87613259).

It can be written as a sum of positive squares in 4 ways, for example, as 22762441 + 64850809 = 4771^2 + 8053^2 .

It is not an unprimeable number, because it can be changed into a prime (87613259) 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, 174977 + ... + 175476.

Almost surely, 2^87613250 is an apocalyptic number.

87613250 is a deficient number, since it is larger than the sum of its proper divisors (76399222).

87613250 is a wasteful number, since it uses less digits than its factorization.

87613250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350470 (or 350460 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 87613250 is about 9360.1949766017. The cubic root of 87613250 is about 444.1434518751.

The spelling of 87613250 in words is "eighty-seven million, six hundred thirteen thousand, two hundred fifty".