75217007 has 4 divisors (see below), whose sum is σ = 76123320. Its totient is φ = 74310696.

The previous prime is 75217003. The next prime is 75217031. The reversal of 75217007 is 70071257.

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

It is a cyclic number.

It is not a de Polignac number, because 75217007 - 2² = 75217003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75217003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453032 + ... + 453197.

It is an arithmetic number, because the mean of its divisors is an integer number (19030830).

Almost surely, 2^75217007 is an apocalyptic number.

75217007 is a deficient number, since it is larger than the sum of its proper divisors (906313).

75217007 is an equidigital number, since it uses as much as digits as its factorization.

75217007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906312.

The product of its (nonzero) digits is 3430, while the sum is 29.

The square root of 75217007 is about 8672.7738930517. The cubic root of 75217007 is about 422.1226760884.

The spelling of 75217007 in words is "seventy-five million, two hundred seventeen thousand, seven".