75630361 has 4 divisors (see below), whose sum is σ = 76207824. Its totient is φ = 75052900.

The previous prime is 75630353. The next prime is 75630367. The reversal of 75630361 is 16303657.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75630361 - 2³ = 75630353 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75630367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288535 + ... + 288796.

It is an arithmetic number, because the mean of its divisors is an integer number (19051956).

Almost surely, 2^75630361 is an apocalyptic number.

It is an amenable number.

75630361 is a deficient number, since it is larger than the sum of its proper divisors (577463).

75630361 is a wasteful number, since it uses less digits than its factorization.

75630361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577462.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 75630361 is about 8696.5717958285. The cubic root of 75630361 is about 422.8945203262.

It can be divided in two parts, 75 and 630361, that added together give a square (630436 = 794²).

The spelling of 75630361 in words is "seventy-five million, six hundred thirty thousand, three hundred sixty-one".