75457387 has 2 divisors, whose sum is σ = 75457388. Its totient is φ = 75457386.

The previous prime is 75457351. The next prime is 75457409. The reversal of 75457387 is 78375457.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75457387 - 2¹⁹ = 74933099 is a prime.

It is not a weakly prime, because it can be changed into another prime (75457307) 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 as a sum of consecutive naturals, namely, 37728693 + 37728694.

It is an arithmetic number, because the mean of its divisors is an integer number (37728694).

Almost surely, 2^75457387 is an apocalyptic number.

75457387 is a deficient number, since it is larger than the sum of its proper divisors (1).

75457387 is an equidigital number, since it uses as much as digits as its factorization.

75457387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 823200, while the sum is 46.

The square root of 75457387 is about 8686.6211497912. The cubic root of 75457387 is about 422.5718739109.

The spelling of 75457387 in words is "seventy-five million, four hundred fifty-seven thousand, three hundred eighty-seven".