75107987 has 2 divisors, whose sum is σ = 75107988. Its totient is φ = 75107986.

The previous prime is 75107959. The next prime is 75108001. The reversal of 75107987 is 78970157.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75107987 - 2¹² = 75103891 is a prime.

It is a super-2 number, since 2×75107987² = 11282419422384338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75101987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37553993 + 37553994.

It is an arithmetic number, because the mean of its divisors is an integer number (37553994).

Almost surely, 2^75107987 is an apocalyptic number.

75107987 is a deficient number, since it is larger than the sum of its proper divisors (1).

75107987 is an equidigital number, since it uses as much as digits as its factorization.

75107987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 123480, while the sum is 44.

The square root of 75107987 is about 8666.4864276130. The cubic root of 75107987 is about 421.9186350623.

The spelling of 75107987 in words is "seventy-five million, one hundred seven thousand, nine hundred eighty-seven".