65438851 has 2 divisors, whose sum is σ = 65438852. Its totient is φ = 65438850.

The previous prime is 65438843. The next prime is 65438873. The reversal of 65438851 is 15883456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65438851 - 2³ = 65438843 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65438251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32719425 + 32719426.

It is an arithmetic number, because the mean of its divisors is an integer number (32719426).

Almost surely, 2^65438851 is an apocalyptic number.

65438851 is a deficient number, since it is larger than the sum of its proper divisors (1).

65438851 is an equidigital number, since it uses as much as digits as its factorization.

65438851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 40.

The square root of 65438851 is about 8089.4283481591. The cubic root of 65438851 is about 402.9754185821.

The spelling of 65438851 in words is "sixty-five million, four hundred thirty-eight thousand, eight hundred fifty-one".