38653739 has 2 divisors, whose sum is σ = 38653740. Its totient is φ = 38653738.

The previous prime is 38653717. The next prime is 38653751. The reversal of 38653739 is 93735683.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38653739 - 2¹² = 38649643 is a prime.

It is a super-2 number, since 2×38653739² = 2988223077360242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38653739.

It is not a weakly prime, because it can be changed into another prime (38653759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19326869 + 19326870.

It is an arithmetic number, because the mean of its divisors is an integer number (19326870).

Almost surely, 2^38653739 is an apocalyptic number.

38653739 is a deficient number, since it is larger than the sum of its proper divisors (1).

38653739 is an equidigital number, since it uses as much as digits as its factorization.

38653739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 44.

The square root of 38653739 is about 6217.2131216486. The cubic root of 38653739 is about 338.1145317546.

The spelling of 38653739 in words is "thirty-eight million, six hundred fifty-three thousand, seven hundred thirty-nine".