97280377 has 2 divisors, whose sum is σ = 97280378. Its totient is φ = 97280376.

The previous prime is 97280369. The next prime is 97280383. The reversal of 97280377 is 77308279.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79941481 + 17338896 = 8941^2 + 4164^2 .

It is a cyclic number.

It is not a de Polignac number, because 97280377 - 2³ = 97280369 is a prime.

It is not a weakly prime, because it can be changed into another prime (97280327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48640188 + 48640189.

It is an arithmetic number, because the mean of its divisors is an integer number (48640189).

Almost surely, 2^97280377 is an apocalyptic number.

It is an amenable number.

97280377 is a deficient number, since it is larger than the sum of its proper divisors (1).

97280377 is an equidigital number, since it uses as much as digits as its factorization.

97280377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 97280377 is about 9863.0815164430. The cubic root of 97280377 is about 459.9123604306.

The spelling of 97280377 in words is "ninety-seven million, two hundred eighty thousand, three hundred seventy-seven".