38976545 has 4 divisors (see below), whose sum is σ = 46771860. Its totient is φ = 31181232.

The previous prime is 38976541. The next prime is 38976557. The reversal of 38976545 is 54567983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54567983 = 23 ⋅2372521.

It can be written as a sum of positive squares in 2 ways, for example, as 19678096 + 19298449 = 4436^2 + 4393^2 .

It is a cyclic number.

It is not a de Polignac number, because 38976545 - 2² = 38976541 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38976545.

It is not an unprimeable number, because it can be changed into a prime (38976541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3897650 + ... + 3897659.

It is an arithmetic number, because the mean of its divisors is an integer number (11692965).

Almost surely, 2^38976545 is an apocalyptic number.

It is an amenable number.

38976545 is a deficient number, since it is larger than the sum of its proper divisors (7795315).

38976545 is an equidigital number, since it uses as much as digits as its factorization.

38976545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7795314.

The product of its digits is 907200, while the sum is 47.

The square root of 38976545 is about 6243.1198130422. The cubic root of 38976545 is about 339.0531470234.

The spelling of 38976545 in words is "thirty-eight million, nine hundred seventy-six thousand, five hundred forty-five".