653902 has 4 divisors (see below), whose sum is σ = 980856. Its totient is φ = 326950.

The previous prime is 653899. The next prime is 653903. The reversal of 653902 is 209356.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163474 + ... + 163477.

It is an arithmetic number, because the mean of its divisors is an integer number (245214).

2⁶⁵³⁹⁰² is an apocalyptic number.

653902 is a deficient number, since it is larger than the sum of its proper divisors (326954).

653902 is a wasteful number, since it uses less digits than its factorization.

653902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326953.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 653902 is about 808.6420716238. The cubic root of 653902 is about 86.7969015012.

The spelling of 653902 in words is "six hundred fifty-three thousand, nine hundred two".