75457207 has 6 divisors (see below), whose sum is σ = 87776808. Its totient is φ = 64677564.

The previous prime is 75457199. The next prime is 75457229. The reversal of 75457207 is 70275457.

It is not a de Polignac number, because 75457207 - 2³ = 75457199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75457247) 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 in 5 ways as a sum of consecutive naturals, for example, 769923 + ... + 770020.

It is an arithmetic number, because the mean of its divisors is an integer number (14629468).

Almost surely, 2^75457207 is an apocalyptic number.

75457207 is a deficient number, since it is larger than the sum of its proper divisors (12319601).

75457207 is a wasteful number, since it uses less digits than its factorization.

75457207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539957 (or 1539950 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 37.

The square root of 75457207 is about 8686.6107890247. The cubic root of 75457207 is about 422.5715379022.

The spelling of 75457207 in words is "seventy-five million, four hundred fifty-seven thousand, two hundred seven".