87631250 has 48 divisors (see below), whose sum is σ = 187862976. Its totient is φ = 30030000.

The previous prime is 87631241. The next prime is 87631259. The reversal of 87631250 is 5213678.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87631241) and next prime (87631259).

It is not an unprimeable number, because it can be changed into a prime (87631259) 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, 42749 + ... + 44751.

It is an arithmetic number, because the mean of its divisors is an integer number (3913812).

Almost surely, 2^87631250 is an apocalyptic number.

87631250 is an abundant number, since it is smaller than the sum of its proper divisors (100231726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87631250 is an equidigital number, since it uses as much as digits as its factorization.

87631250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037 (or 2017 counting only the distinct ones).

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

The square root of 87631250 is about 9361.1564456535. The cubic root of 87631250 is about 444.1738659761.

The spelling of 87631250 in words is "eighty-seven million, six hundred thirty-one thousand, two hundred fifty".