53867897 has 4 divisors (see below), whose sum is σ = 53996880. Its totient is φ = 53738916.

The previous prime is 53867887. The next prime is 53867959. The reversal of 53867897 is 79876835.

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.

It is a cyclic number.

It is not a de Polignac number, because 53867897 - 2⁶ = 53867833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53867837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63863 + ... + 64700.

It is an arithmetic number, because the mean of its divisors is an integer number (13499220).

Almost surely, 2^53867897 is an apocalyptic number.

It is an amenable number.

53867897 is a deficient number, since it is larger than the sum of its proper divisors (128983).

53867897 is a wasteful number, since it uses less digits than its factorization.

53867897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128982.

The product of its digits is 2540160, while the sum is 53.

The square root of 53867897 is about 7339.4752537222. The cubic root of 53867897 is about 377.6678422679.

The spelling of 53867897 in words is "fifty-three million, eight hundred sixty-seven thousand, eight hundred ninety-seven".