75457307 has 2 divisors, whose sum is σ = 75457308. Its totient is φ = 75457306.

The previous prime is 75457279. The next prime is 75457313. The reversal of 75457307 is 70375457.

It is a strong prime.

It is an emirp because it is prime and its reverse (70375457) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75457307 - 2⁶ = 75457243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75457337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37728653 + 37728654.

It is an arithmetic number, because the mean of its divisors is an integer number (37728654).

Almost surely, 2^75457307 is an apocalyptic number.

75457307 is a deficient number, since it is larger than the sum of its proper divisors (1).

75457307 is an equidigital number, since it uses as much as digits as its factorization.

75457307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102900, while the sum is 38.

The square root of 75457307 is about 8686.6165450076. The cubic root of 75457307 is about 422.5717245738.

The spelling of 75457307 in words is "seventy-five million, four hundred fifty-seven thousand, three hundred seven".