652217387 has 2 divisors, whose sum is σ = 652217388. Its totient is φ = 652217386.

The previous prime is 652217369. The next prime is 652217399. The reversal of 652217387 is 783712256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 652217387 - 2¹² = 652213291 is a prime.

It is not a weakly prime, because it can be changed into another prime (652217347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326108693 + 326108694.

It is an arithmetic number, because the mean of its divisors is an integer number (326108694).

Almost surely, 2^652217387 is an apocalyptic number.

652217387 is a deficient number, since it is larger than the sum of its proper divisors (1).

652217387 is an equidigital number, since it uses as much as digits as its factorization.

652217387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 41.

The square root of 652217387 is about 25538.5470808345. The cubic root of 652217387 is about 867.2230065165.

The spelling of 652217387 in words is "six hundred fifty-two million, two hundred seventeen thousand, three hundred eighty-seven".