38772113 has 2 divisors, whose sum is σ = 38772114. Its totient is φ = 38772112.

The previous prime is 38772109. The next prime is 38772131. The reversal of 38772113 is 31127783.

Together with next prime (38772131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26543104 + 12229009 = 5152^2 + 3497^2 .

It is a cyclic number.

It is not a de Polignac number, because 38772113 - 2² = 38772109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38772113.

It is not a weakly prime, because it can be changed into another prime (38772193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19386056 + 19386057.

It is an arithmetic number, because the mean of its divisors is an integer number (19386057).

Almost surely, 2^38772113 is an apocalyptic number.

It is an amenable number.

38772113 is a deficient number, since it is larger than the sum of its proper divisors (1).

38772113 is an equidigital number, since it uses as much as digits as its factorization.

38772113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 32.

The square root of 38772113 is about 6226.7257045738. The cubic root of 38772113 is about 338.4593296383.

Adding to 38772113 its reverse (31127783), we get a palindrome (69899896).

The spelling of 38772113 in words is "thirty-eight million, seven hundred seventy-two thousand, one hundred thirteen".