75242727 has 12 divisors (see below), whose sum is σ = 124210320. Its totient is φ = 42995808.

The previous prime is 75242701. The next prime is 75242753. The reversal of 75242727 is 72724257.

It is an interprime number because it is at equal distance from previous prime (75242701) and next prime (75242753).

It is not a de Polignac number, because 75242727 - 2¹⁰ = 75241703 is a prime.

It is a super-2 number, since 2×75242727² = 11322935932793058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75242691 and 75242700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75242777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 597102 + ... + 597227.

It is an arithmetic number, because the mean of its divisors is an integer number (10350860).

Almost surely, 2^75242727 is an apocalyptic number.

75242727 is a deficient number, since it is larger than the sum of its proper divisors (48967593).

75242727 is a wasteful number, since it uses less digits than its factorization.

75242727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194342 (or 1194339 counting only the distinct ones).

The product of its digits is 54880, while the sum is 36.

The square root of 75242727 is about 8674.2565675682. The cubic root of 75242727 is about 422.1707847029.

The spelling of 75242727 in words is "seventy-five million, two hundred forty-two thousand, seven hundred twenty-seven".