38813633 has 2 divisors, whose sum is σ = 38813634. Its totient is φ = 38813632.

The previous prime is 38813617. The next prime is 38813653. The reversal of 38813633 is 33631883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30217009 + 8596624 = 5497^2 + 2932^2 .

It is a cyclic number.

It is not a de Polignac number, because 38813633 - 2⁴ = 38813617 is a prime.

It is a super-3 number, since 3×38813633³ (a number of 24 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38813593 and 38813602.

It is not a weakly prime, because it can be changed into another prime (38813653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19406816 + 19406817.

It is an arithmetic number, because the mean of its divisors is an integer number (19406817).

Almost surely, 2^38813633 is an apocalyptic number.

It is an amenable number.

38813633 is a deficient number, since it is larger than the sum of its proper divisors (1).

38813633 is an equidigital number, since it uses as much as digits as its factorization.

38813633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The square root of 38813633 is about 6230.0588279727. The cubic root of 38813633 is about 338.5801021644.

The spelling of 38813633 in words is "thirty-eight million, eight hundred thirteen thousand, six hundred thirty-three".