38971369 has 4 divisors (see below), whose sum is σ = 39007620. Its totient is φ = 38935120.

The previous prime is 38971351. The next prime is 38971381. The reversal of 38971369 is 96317983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96317983 = 1087 ⋅88609.

It can be written as a sum of positive squares in 2 ways, for example, as 6310144 + 32661225 = 2512^2 + 5715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38971369 is a prime.

It is a super-2 number, since 2×38971369² = 3037535203468322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38975369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16462 + ... + 18679.

It is an arithmetic number, because the mean of its divisors is an integer number (9751905).

Almost surely, 2^38971369 is an apocalyptic number.

It is an amenable number.

38971369 is a deficient number, since it is larger than the sum of its proper divisors (36251).

38971369 is a wasteful number, since it uses less digits than its factorization.

38971369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36250.

The product of its digits is 244944, while the sum is 46.

The square root of 38971369 is about 6242.7052629449. The cubic root of 38971369 is about 339.0381378533.

It can be divided in two parts, 38971 and 369, that added together give a triangular number (39340 = T₂₈₀).

The spelling of 38971369 in words is "thirty-eight million, nine hundred seventy-one thousand, three hundred sixty-nine".