66094429 has 2 divisors, whose sum is σ = 66094430. Its totient is φ = 66094428.

The previous prime is 66094421. The next prime is 66094447. The reversal of 66094429 is 92449066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44023225 + 22071204 = 6635^2 + 4698^2 .

It is a cyclic number.

It is not a de Polignac number, because 66094429 - 2³ = 66094421 is a prime.

It is a super-4 number, since 4×66094429⁴ (a number of 32 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66094391 and 66094400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66094421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33047214 + 33047215.

It is an arithmetic number, because the mean of its divisors is an integer number (33047215).

Almost surely, 2^66094429 is an apocalyptic number.

It is an amenable number.

66094429 is a deficient number, since it is larger than the sum of its proper divisors (1).

66094429 is an equidigital number, since it uses as much as digits as its factorization.

66094429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 66094429 is about 8129.8480305600. The cubic root of 66094429 is about 404.3166426698.

The spelling of 66094429 in words is "sixty-six million, ninety-four thousand, four hundred twenty-nine".