838653043 has 2 divisors, whose sum is σ = 838653044. Its totient is φ = 838653042.

The previous prime is 838653029. The next prime is 838653113. The reversal of 838653043 is 340356838.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838653043 is a prime.

It is equal to p_43029895 and since 838653043 and 43029895 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 838652987 and 838653005.

It is not a weakly prime, because it can be changed into another prime (838653643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419326521 + 419326522.

It is an arithmetic number, because the mean of its divisors is an integer number (419326522).

Almost surely, 2^838653043 is an apocalyptic number.

838653043 is a deficient number, since it is larger than the sum of its proper divisors (1).

838653043 is an equidigital number, since it uses as much as digits as its factorization.

838653043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 838653043 is about 28959.5069536759. The cubic root of 838653043 is about 943.0341984046.

The spelling of 838653043 in words is "eight hundred thirty-eight million, six hundred fifty-three thousand, forty-three".