65437429 has 2 divisors, whose sum is σ = 65437430. Its totient is φ = 65437428.

The previous prime is 65437417. The next prime is 65437433. The reversal of 65437429 is 92473456.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60606225 + 4831204 = 7785^2 + 2198^2 .

It is a cyclic number.

It is not a de Polignac number, because 65437429 - 2¹⁹ = 64913141 is a prime.

It is a super-2 number, since 2×65437429² = 8564114228260082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65437391 and 65437400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65437409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32718714 + 32718715.

It is an arithmetic number, because the mean of its divisors is an integer number (32718715).

Almost surely, 2^65437429 is an apocalyptic number.

It is an amenable number.

65437429 is a deficient number, since it is larger than the sum of its proper divisors (1).

65437429 is an equidigital number, since it uses as much as digits as its factorization.

65437429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The square root of 65437429 is about 8089.3404551916. The cubic root of 65437429 is about 402.9724996474.

It can be divided in two parts, 654 and 37429, that added together give a palindrome (38083).

The spelling of 65437429 in words is "sixty-five million, four hundred thirty-seven thousand, four hundred twenty-nine".