75775407 has 8 divisors (see below), whose sum is σ = 101136000. Its totient is φ = 50465880.

The previous prime is 75775397. The next prime is 75775423. The reversal of 75775407 is 70457757.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75775407 - 2⁴ = 75775391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75775507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9157 + ... + 15342.

It is an arithmetic number, because the mean of its divisors is an integer number (12642000).

Almost surely, 2^75775407 is an apocalyptic number.

75775407 is a deficient number, since it is larger than the sum of its proper divisors (25360593).

75775407 is a wasteful number, since it uses less digits than its factorization.

75775407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25533.

The product of its (nonzero) digits is 240100, while the sum is 42.

The square root of 75775407 is about 8704.9070644091. The cubic root of 75775407 is about 423.1646939569.

The spelling of 75775407 in words is "seventy-five million, seven hundred seventy-five thousand, four hundred seven".