75987700 has 36 divisors (see below), whose sum is σ = 167609932. Its totient is φ = 29894400.

The previous prime is 75987683. The next prime is 75987713. The reversal of 75987700 is 778957.

It can be written as a sum of positive squares in 6 ways, for example, as 5326864 + 70660836 = 2308^2 + 8406^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129 + ... + 12328.

Almost surely, 2^75987700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75987700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83804966).

75987700 is an abundant number, since it is smaller than the sum of its proper divisors (91622232).

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

75987700 is a wasteful number, since it uses less digits than its factorization.

75987700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12532 (or 12525 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 43.

The square root of 75987700 is about 8717.0924051544. The cubic root of 75987700 is about 423.5595060391.

The spelling of 75987700 in words is "seventy-five million, nine hundred eighty-seven thousand, seven hundred".