38047761 has 6 divisors (see below), whose sum is σ = 54957890. Its totient is φ = 25365168.

The previous prime is 38047753. The next prime is 38047783. The reversal of 38047761 is 16774083.

It can be written as a sum of positive squares in only one way, i.e., 36000000 + 2047761 = 6000^2 + 1431^2 .

It is not a de Polignac number, because 38047761 - 2³ = 38047753 is a prime.

It is a super-2 number, since 2×38047761² = 2895264234226242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38047721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2113756 + ... + 2113773.

Almost surely, 2^38047761 is an apocalyptic number.

It is an amenable number.

38047761 is a deficient number, since it is larger than the sum of its proper divisors (16910129).

38047761 is a wasteful number, since it uses less digits than its factorization.

38047761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227535 (or 4227532 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 38047761 is about 6168.2867151260. The cubic root of 38047761 is about 336.3383337343.

The spelling of 38047761 in words is "thirty-eight million, forty-seven thousand, seven hundred sixty-one".