38670431 has 2 divisors, whose sum is σ = 38670432. Its totient is φ = 38670430.

The previous prime is 38670419. The next prime is 38670449. The reversal of 38670431 is 13407683.

It is a weak prime.

It is an emirp because it is prime and its reverse (13407683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38670431 - 2⁶ = 38670367 is a prime.

It is a super-2 number, since 2×38670431² = 2990804467451522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38670451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19335215 + 19335216.

It is an arithmetic number, because the mean of its divisors is an integer number (19335216).

Almost surely, 2^38670431 is an apocalyptic number.

38670431 is a deficient number, since it is larger than the sum of its proper divisors (1).

38670431 is an equidigital number, since it uses as much as digits as its factorization.

38670431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 38670431 is about 6218.5553788641. Note that the first 3 decimals coincide. The cubic root of 38670431 is about 338.1631945378.

The spelling of 38670431 in words is "thirty-eight million, six hundred seventy thousand, four hundred thirty-one".