65629493 has 2 divisors, whose sum is σ = 65629494. Its totient is φ = 65629492.

The previous prime is 65629471. The next prime is 65629507. The reversal of 65629493 is 39492656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54493924 + 11135569 = 7382^2 + 3337^2 .

It is a cyclic number.

It is not a de Polignac number, because 65629493 - 2⁶ = 65629429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65629463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32814746 + 32814747.

It is an arithmetic number, because the mean of its divisors is an integer number (32814747).

Almost surely, 2^65629493 is an apocalyptic number.

It is an amenable number.

65629493 is a deficient number, since it is larger than the sum of its proper divisors (1).

65629493 is an equidigital number, since it uses as much as digits as its factorization.

65629493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 44.

The square root of 65629493 is about 8101.2031822440. The cubic root of 65629493 is about 403.3663665467.

The spelling of 65629493 in words is "sixty-five million, six hundred twenty-nine thousand, four hundred ninety-three".