73838431 has 2 divisors, whose sum is σ = 73838432. Its totient is φ = 73838430.

The previous prime is 73838423. The next prime is 73838461. The reversal of 73838431 is 13483837.

It is a weak prime.

It is an emirp because it is prime and its reverse (13483837) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73838431 - 2³ = 73838423 is a prime.

It is a super-2 number, since 2×73838431² = 10904227785083522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73838461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36919215 + 36919216.

It is an arithmetic number, because the mean of its divisors is an integer number (36919216).

Almost surely, 2^73838431 is an apocalyptic number.

73838431 is a deficient number, since it is larger than the sum of its proper divisors (1).

73838431 is an equidigital number, since it uses as much as digits as its factorization.

73838431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 37.

The square root of 73838431 is about 8592.9291280680. The cubic root of 73838431 is about 419.5278727249.

The spelling of 73838431 in words is "seventy-three million, eight hundred thirty-eight thousand, four hundred thirty-one".