53817897 has 32 divisors (see below), whose sum is σ = 84851712. Its totient is φ = 29703744.

The previous prime is 53817893. The next prime is 53817913. The reversal of 53817897 is 79871835.

It is not a de Polignac number, because 53817897 - 2² = 53817893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53817893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96343 + ... + 96899.

It is an arithmetic number, because the mean of its divisors is an integer number (2651616).

Almost surely, 2^53817897 is an apocalyptic number.

It is an amenable number.

53817897 is a deficient number, since it is larger than the sum of its proper divisors (31033815).

53817897 is a wasteful number, since it uses less digits than its factorization.

53817897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717.

The product of its digits is 423360, while the sum is 48.

The square root of 53817897 is about 7336.0682248736. The cubic root of 53817897 is about 377.5509560909.

The spelling of 53817897 in words is "fifty-three million, eight hundred seventeen thousand, eight hundred ninety-seven".