38700811 has 2 divisors, whose sum is σ = 38700812. Its totient is φ = 38700810.

The previous prime is 38700793. The next prime is 38700821. The reversal of 38700811 is 11800783.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38700811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38700811.

It is not a weakly prime, because it can be changed into another prime (38700821) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19350405 + 19350406.

It is an arithmetic number, because the mean of its divisors is an integer number (19350406).

Almost surely, 2^38700811 is an apocalyptic number.

38700811 is a deficient number, since it is larger than the sum of its proper divisors (1).

38700811 is an equidigital number, since it uses as much as digits as its factorization.

38700811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 38700811 is about 6220.9975888116. The cubic root of 38700811 is about 338.2517265113.

Subtracting from 38700811 its sum of digits (28), we obtain a palindrome (38700783).

The spelling of 38700811 in words is "thirty-eight million, seven hundred thousand, eight hundred eleven".