654951 has 16 divisors (see below), whose sum is σ = 967680. Its totient is φ = 390720.

The previous prime is 654943. The next prime is 654967. The reversal of 654951 is 159456.

It is not a de Polignac number, because 654951 - 2³ = 654943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2826 + ... + 3048.

It is an arithmetic number, because the mean of its divisors is an integer number (60480).

2⁶⁵⁴⁹⁵¹ is an apocalyptic number.

654951 is a deficient number, since it is larger than the sum of its proper divisors (312729).

654951 is a wasteful number, since it uses less digits than its factorization.

654951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326.

The product of its digits is 5400, while the sum is 30.

The square root of 654951 is about 809.2904299447. The cubic root of 654951 is about 86.8432903613.

The spelling of 654951 in words is "six hundred fifty-four thousand, nine hundred fifty-one".