38764469 has 2 divisors, whose sum is σ = 38764470. Its totient is φ = 38764468.

The previous prime is 38764447. The next prime is 38764487. The reversal of 38764469 is 96446783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25623844 + 13140625 = 5062^2 + 3625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38764469 is a prime.

It is a super-2 number, since 2×38764469² = 3005368113703922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38764489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19382234 + 19382235.

It is an arithmetic number, because the mean of its divisors is an integer number (19382235).

Almost surely, 2^38764469 is an apocalyptic number.

It is an amenable number.

38764469 is a deficient number, since it is larger than the sum of its proper divisors (1).

38764469 is an equidigital number, since it uses as much as digits as its factorization.

38764469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The square root of 38764469 is about 6226.1118685742. Note that the first 3 decimals coincide. The cubic root of 38764469 is about 338.4370855307.

The spelling of 38764469 in words is "thirty-eight million, seven hundred sixty-four thousand, four hundred sixty-nine".