197652379 has 2 divisors, whose sum is σ = 197652380. Its totient is φ = 197652378.

The previous prime is 197652361. The next prime is 197652397. The reversal of 197652379 is 973256791.

Together with next prime (197652397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (197652361) and next prime (197652397).

It is a cyclic number.

It is not a de Polignac number, because 197652379 - 2¹⁹ = 197128091 is a prime.

It is not a weakly prime, because it can be changed into another prime (197652979) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98826189 + 98826190.

It is an arithmetic number, because the mean of its divisors is an integer number (98826190).

Almost surely, 2^197652379 is an apocalyptic number.

197652379 is a deficient number, since it is larger than the sum of its proper divisors (1).

197652379 is an equidigital number, since it uses as much as digits as its factorization.

197652379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 49.

The square root of 197652379 is about 14058.8896787762. The cubic root of 197652379 is about 582.5063740883.

The spelling of 197652379 in words is "one hundred ninety-seven million, six hundred fifty-two thousand, three hundred seventy-nine".