97378361 has 2 divisors, whose sum is σ = 97378362. Its totient is φ = 97378360.

The previous prime is 97378291. The next prime is 97378381. The reversal of 97378361 is 16387379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66520336 + 30858025 = 8156^2 + 5555^2 .

It is an emirp because it is prime and its reverse (16387379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97378361 - 2²² = 93184057 is a prime.

It is not a weakly prime, because it can be changed into another prime (97378381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48689180 + 48689181.

It is an arithmetic number, because the mean of its divisors is an integer number (48689181).

Almost surely, 2^97378361 is an apocalyptic number.

It is an amenable number.

97378361 is a deficient number, since it is larger than the sum of its proper divisors (1).

97378361 is an equidigital number, since it uses as much as digits as its factorization.

97378361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 97378361 is about 9868.0474765781. The cubic root of 97378361 is about 460.0667215757.

The spelling of 97378361 in words is "ninety-seven million, three hundred seventy-eight thousand, three hundred sixty-one".