75423907 has 12 divisors (see below), whose sum is σ = 82558560. Its totient is φ = 68487120.

The previous prime is 75423869. The next prime is 75423911. The reversal of 75423907 is 70932457.

It is not a de Polignac number, because 75423907 - 2¹¹ = 75421859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75423107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278182 + ... + 278452.

It is an arithmetic number, because the mean of its divisors is an integer number (6879880).

Almost surely, 2^75423907 is an apocalyptic number.

75423907 is a deficient number, since it is larger than the sum of its proper divisors (7134653).

75423907 is an equidigital number, since it uses as much as digits as its factorization.

75423907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 75423907 is about 8684.6938345574. The cubic root of 75423907 is about 422.5093671114.

It can be divided in two parts, 7542 and 3907, that added together give a square (11449 = 107²).

The spelling of 75423907 in words is "seventy-five million, four hundred twenty-three thousand, nine hundred seven".