53890689 has 4 divisors (see below), whose sum is σ = 71854256. Its totient is φ = 35927124.

The previous prime is 53890673. The next prime is 53890691. The reversal of 53890689 is 98609835.

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 not a de Polignac number, because 53890689 - 2⁴ = 53890673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53890609) 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, 8981779 + ... + 8981784.

It is an arithmetic number, because the mean of its divisors is an integer number (17963564).

Almost surely, 2^53890689 is an apocalyptic number.

It is an amenable number.

53890689 is a deficient number, since it is larger than the sum of its proper divisors (17963567).

53890689 is a wasteful number, since it uses less digits than its factorization.

53890689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17963566.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 53890689 is about 7341.0277890769. The cubic root of 53890689 is about 377.7210996637.

The spelling of 53890689 in words is "fifty-three million, eight hundred ninety thousand, six hundred eighty-nine".