75947990 has 32 divisors (see below), whose sum is σ = 142067520. Its totient is φ = 29209600.

The previous prime is 75947987. The next prime is 75947999. The reversal of 75947990 is 9974957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75947999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27806 + ... + 30414.

It is an arithmetic number, because the mean of its divisors is an integer number (4439610).

Almost surely, 2^75947990 is an apocalyptic number.

75947990 is a deficient number, since it is larger than the sum of its proper divisors (66119530).

75947990 is a wasteful number, since it uses less digits than its factorization.

75947990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728.

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 75947990 is about 8714.8143984826. The cubic root of 75947990 is about 423.4857112946.

The spelling of 75947990 in words is "seventy-five million, nine hundred forty-seven thousand, nine hundred ninety".