652381 has 2 divisors, whose sum is σ = 652382. Its totient is φ = 652380.

The previous prime is 652373. The next prime is 652411. The reversal of 652381 is 183256.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 648025 + 4356 = 805^2 + 66^2 .

It is a cyclic number.

It is not a de Polignac number, because 652381 - 2³ = 652373 is a prime.

It is a super-2 number, since 2×652381² = 851201938322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

652381 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326190 + 326191.

It is an arithmetic number, because the mean of its divisors is an integer number (326191).

2⁶⁵²³⁸¹ is an apocalyptic number.

It is an amenable number.

652381 is a deficient number, since it is larger than the sum of its proper divisors (1).

652381 is an equidigital number, since it uses as much as digits as its factorization.

652381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 25.

The square root of 652381 is about 807.7010585607. The cubic root of 652381 is about 86.7295516643.

The spelling of 652381 in words is "six hundred fifty-two thousand, three hundred eighty-one".