75730001 has 4 divisors (see below), whose sum is σ = 76400292. Its totient is φ = 75059712.

The previous prime is 75729977. The next prime is 75730003. The reversal of 75730001 is 10003757.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6507601 + 69222400 = 2551^2 + 8320^2 .

It is a cyclic number.

It is not a de Polignac number, because 75730001 - 2²² = 71535697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75730003) 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, 334976 + ... + 335201.

It is an arithmetic number, because the mean of its divisors is an integer number (19100073).

Almost surely, 2^75730001 is an apocalyptic number.

It is an amenable number.

75730001 is a deficient number, since it is larger than the sum of its proper divisors (670291).

75730001 is a wasteful number, since it uses less digits than its factorization.

75730001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670290.

The product of its (nonzero) digits is 735, while the sum is 23.

The square root of 75730001 is about 8702.2986043918. The cubic root of 75730001 is about 423.0801544123.

Adding to 75730001 its reverse (10003757), we get a palindrome (85733758).

The spelling of 75730001 in words is "seventy-five million, seven hundred thirty thousand, one".