75987420 has 48 divisors (see below), whose sum is σ = 213970848. Its totient is φ = 20148480.

The previous prime is 75987409. The next prime is 75987449. The reversal of 75987420 is 2478957.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7362 + ... + 14358.

It is an arithmetic number, because the mean of its divisors is an integer number (4457726).

Almost surely, 2^75987420 is an apocalyptic number.

It is an amenable number.

75987420 is an abundant number, since it is smaller than the sum of its proper divisors (137983428).

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

75987420 is a wasteful number, since it uses less digits than its factorization.

75987420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7190 (or 7188 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 75987420 is about 8717.0763447385. The cubic root of 75987420 is about 423.5589857934.

The spelling of 75987420 in words is "seventy-five million, nine hundred eighty-seven thousand, four hundred twenty".