38970287 has 8 divisors (see below), whose sum is σ = 41404800. Its totient is φ = 36608544.

The previous prime is 38970263. The next prime is 38970289. The reversal of 38970287 is 78207983.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38970287 - 2¹⁶ = 38904751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38970289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17087 + ... + 19232.

It is an arithmetic number, because the mean of its divisors is an integer number (5175600).

Almost surely, 2^38970287 is an apocalyptic number.

38970287 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

38970287 is a deficient number, since it is larger than the sum of its proper divisors (2434513).

38970287 is a wasteful number, since it uses less digits than its factorization.

38970287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36385.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 38970287 is about 6242.6186011961. The cubic root of 38970287 is about 339.0350001425.

Subtracting 38970287 from its reverse (78207983), we obtain a square (39237696 = 6264²).

The spelling of 38970287 in words is "thirty-eight million, nine hundred seventy thousand, two hundred eighty-seven".