38705531 has 2 divisors, whose sum is σ = 38705532. Its totient is φ = 38705530.

The previous prime is 38705519. The next prime is 38705539. The reversal of 38705531 is 13550783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38705531 - 2⁶ = 38705467 is a prime.

It is a super-2 number, since 2×38705531² = 2996236259983922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38705539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19352765 + 19352766.

It is an arithmetic number, because the mean of its divisors is an integer number (19352766).

Almost surely, 2^38705531 is an apocalyptic number.

38705531 is a deficient number, since it is larger than the sum of its proper divisors (1).

38705531 is an equidigital number, since it uses as much as digits as its factorization.

38705531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 38705531 is about 6221.3769376240. The cubic root of 38705531 is about 338.2654771555.

The spelling of 38705531 in words is "thirty-eight million, seven hundred five thousand, five hundred thirty-one".