97420481 has 2 divisors, whose sum is σ = 97420482. Its totient is φ = 97420480.

The previous prime is 97420447. The next prime is 97420487. The reversal of 97420481 is 18402479.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66994225 + 30426256 = 8185^2 + 5516^2 .

It is an emirp because it is prime and its reverse (18402479) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97420481 is a prime.

It is a super-2 number, since 2×97420481² = 18981500236542722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97420487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48710240 + 48710241.

It is an arithmetic number, because the mean of its divisors is an integer number (48710241).

Almost surely, 2^97420481 is an apocalyptic number.

It is an amenable number.

97420481 is a deficient number, since it is larger than the sum of its proper divisors (1).

97420481 is an equidigital number, since it uses as much as digits as its factorization.

97420481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 97420481 is about 9870.1814066409. The cubic root of 97420481 is about 460.1330443770.

The spelling of 97420481 in words is "ninety-seven million, four hundred twenty thousand, four hundred eighty-one".