38954561 has 4 divisors (see below), whose sum is σ = 38970672. Its totient is φ = 38938452.

The previous prime is 38954557. The next prime is 38954563. The reversal of 38954561 is 16545983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16545983 = 383 ⋅43201.

It is a cyclic number.

It is not a de Polignac number, because 38954561 - 2² = 38954557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38954563) 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, 3611 + ... + 9536.

It is an arithmetic number, because the mean of its divisors is an integer number (9742668).

Almost surely, 2^38954561 is an apocalyptic number.

It is an amenable number.

38954561 is a deficient number, since it is larger than the sum of its proper divisors (16111).

38954561 is a wasteful number, since it uses less digits than its factorization.

38954561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16110.

The product of its digits is 129600, while the sum is 41.

The square root of 38954561 is about 6241.3589065203. The cubic root of 38954561 is about 338.9893894806.

The spelling of 38954561 in words is "thirty-eight million, nine hundred fifty-four thousand, five hundred sixty-one".