653894 has 4 divisors (see below), whose sum is σ = 980844. Its totient is φ = 326946.

The previous prime is 653893. The next prime is 653899. The reversal of 653894 is 498356.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 653894.

It is not an unprimeable number, because it can be changed into a prime (653893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163472 + ... + 163475.

It is an arithmetic number, because the mean of its divisors is an integer number (245211).

2⁶⁵³⁸⁹⁴ is an apocalyptic number.

653894 is a deficient number, since it is larger than the sum of its proper divisors (326950).

653894 is a wasteful number, since it uses less digits than its factorization.

653894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326949.

The product of its digits is 25920, while the sum is 35.

The square root of 653894 is about 808.6371250444. The cubic root of 653894 is about 86.7965475348.

The spelling of 653894 in words is "six hundred fifty-three thousand, eight hundred ninety-four".