75404423 has 2 divisors, whose sum is σ = 75404424. Its totient is φ = 75404422.

The previous prime is 75404411. The next prime is 75404471. The reversal of 75404423 is 32440457.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75404423 - 2⁸ = 75404167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75404023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37702211 + 37702212.

It is an arithmetic number, because the mean of its divisors is an integer number (37702212).

Almost surely, 2^75404423 is an apocalyptic number.

75404423 is a deficient number, since it is larger than the sum of its proper divisors (1).

75404423 is an equidigital number, since it uses as much as digits as its factorization.

75404423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 75404423 is about 8683.5720184726. The cubic root of 75404423 is about 422.4729821781.

The spelling of 75404423 in words is "seventy-five million, four hundred four thousand, four hundred twenty-three".