38225779 has 2 divisors, whose sum is σ = 38225780. Its totient is φ = 38225778.

The previous prime is 38225771. The next prime is 38225813. The reversal of 38225779 is 97752283.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38225779 - 2³ = 38225771 is a prime.

It is a super-2 number, since 2×38225779² = 2922420360313682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38225771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19112889 + 19112890.

It is an arithmetic number, because the mean of its divisors is an integer number (19112890).

Almost surely, 2^38225779 is an apocalyptic number.

38225779 is a deficient number, since it is larger than the sum of its proper divisors (1).

38225779 is an equidigital number, since it uses as much as digits as its factorization.

38225779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 38225779 is about 6182.6999765475. The cubic root of 38225779 is about 336.8620714252.

The spelling of 38225779 in words is "thirty-eight million, two hundred twenty-five thousand, seven hundred seventy-nine".