38897455 has 4 divisors (see below), whose sum is σ = 46676952. Its totient is φ = 31117960.

The previous prime is 38897429. The next prime is 38897459. The reversal of 38897455 is 55479883.

38897455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 38897455 - 2⁹ = 38896943 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38897399 and 38897408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38897459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3889741 + ... + 3889750.

It is an arithmetic number, because the mean of its divisors is an integer number (11669238).

Almost surely, 2^38897455 is an apocalyptic number.

38897455 is a deficient number, since it is larger than the sum of its proper divisors (7779497).

38897455 is an equidigital number, since it uses as much as digits as its factorization.

38897455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7779496.

The product of its digits is 1209600, while the sum is 49.

The square root of 38897455 is about 6236.7824236540. The cubic root of 38897455 is about 338.8236596762.

The spelling of 38897455 in words is "thirty-eight million, eight hundred ninety-seven thousand, four hundred fifty-five".