97377961 has 2 divisors, whose sum is σ = 97377962. Its totient is φ = 97377960.

The previous prime is 97377953. The next prime is 97377971. The reversal of 97377961 is 16977379.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74995600 + 22382361 = 8660^2 + 4731^2 .

It is an emirp because it is prime and its reverse (16977379) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97377961 - 2³ = 97377953 is a prime.

It is not a weakly prime, because it can be changed into another prime (97377901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48688980 + 48688981.

It is an arithmetic number, because the mean of its divisors is an integer number (48688981).

Almost surely, 2^97377961 is an apocalyptic number.

It is an amenable number.

97377961 is a deficient number, since it is larger than the sum of its proper divisors (1).

97377961 is an equidigital number, since it uses as much as digits as its factorization.

97377961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 500094, while the sum is 49.

The square root of 97377961 is about 9868.0272091234. The cubic root of 97377961 is about 460.0660916379.

The spelling of 97377961 in words is "ninety-seven million, three hundred seventy-seven thousand, nine hundred sixty-one".