75456890 has 8 divisors (see below), whose sum is σ = 135822420. Its totient is φ = 30182752.

The previous prime is 75456881. The next prime is 75456911. The reversal of 75456890 is 9865457.

It can be written as a sum of positive squares in 2 ways, for example, as 62141689 + 13315201 = 7883^2 + 3649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3772835 + ... + 3772854.

Almost surely, 2^75456890 is an apocalyptic number.

75456890 is a deficient number, since it is larger than the sum of its proper divisors (60365530).

75456890 is a wasteful number, since it uses less digits than its factorization.

75456890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7545696.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 75456890 is about 8686.5925425336. The cubic root of 75456890 is about 422.5709461524.

The spelling of 75456890 in words is "seventy-five million, four hundred fifty-six thousand, eight hundred ninety".