75384487 has 2 divisors, whose sum is σ = 75384488. Its totient is φ = 75384486.

The previous prime is 75384469. The next prime is 75384493. The reversal of 75384487 is 78448357.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75384487 - 2¹⁵ = 75351719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75384437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37692243 + 37692244.

It is an arithmetic number, because the mean of its divisors is an integer number (37692244).

Almost surely, 2^75384487 is an apocalyptic number.

75384487 is a deficient number, since it is larger than the sum of its proper divisors (1).

75384487 is an equidigital number, since it uses as much as digits as its factorization.

75384487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 752640, while the sum is 46.

The square root of 75384487 is about 8682.4240278853. The cubic root of 75384487 is about 422.4357466800.

The spelling of 75384487 in words is "seventy-five million, three hundred eighty-four thousand, four hundred eighty-seven".