75407429 has 2 divisors, whose sum is σ = 75407430. Its totient is φ = 75407428.

The previous prime is 75407401. The next prime is 75407441. The reversal of 75407429 is 92470457.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48678529 + 26728900 = 6977^2 + 5170^2 .

It is a cyclic number.

It is not a de Polignac number, because 75407429 - 2⁸ = 75407173 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 75407392 and 75407401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75407729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37703714 + 37703715.

It is an arithmetic number, because the mean of its divisors is an integer number (37703715).

Almost surely, 2^75407429 is an apocalyptic number.

It is an amenable number.

75407429 is a deficient number, since it is larger than the sum of its proper divisors (1).

75407429 is an equidigital number, since it uses as much as digits as its factorization.

75407429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 75407429 is about 8683.7451022010. The cubic root of 75407429 is about 422.4785960703.

The spelling of 75407429 in words is "seventy-five million, four hundred seven thousand, four hundred twenty-nine".