38436973 has 2 divisors, whose sum is σ = 38436974. Its totient is φ = 38436972.

The previous prime is 38436971. The next prime is 38436989. The reversal of 38436973 is 37963483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32296489 + 6140484 = 5683^2 + 2478^2 .

It is a cyclic number.

It is not a de Polignac number, because 38436973 - 2¹ = 38436971 is a prime.

Together with 38436971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38436971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19218486 + 19218487.

It is an arithmetic number, because the mean of its divisors is an integer number (19218487).

Almost surely, 2^38436973 is an apocalyptic number.

It is an amenable number.

38436973 is a deficient number, since it is larger than the sum of its proper divisors (1).

38436973 is an equidigital number, since it uses as much as digits as its factorization.

38436973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 43.

The square root of 38436973 is about 6199.7558822909. The cubic root of 38436973 is about 337.4813099847.

It can be divided in two parts, 3843 and 6973, that added together give a square (10816 = 104²).

The spelling of 38436973 in words is "thirty-eight million, four hundred thirty-six thousand, nine hundred seventy-three".