97890463427 has 2 divisors, whose sum is σ = 97890463428. Its totient is φ = 97890463426.

The previous prime is 97890463397. The next prime is 97890463471. The reversal of 97890463427 is 72436409879.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97890463427 - 2⁸ = 97890463171 is a prime.

It is not a weakly prime, because it can be changed into another prime (97890463127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48945231713 + 48945231714.

It is an arithmetic number, because the mean of its divisors is an integer number (48945231714).

Almost surely, 2^97890463427 is an apocalyptic number.

97890463427 is a deficient number, since it is larger than the sum of its proper divisors (1).

97890463427 is an equidigital number, since it uses as much as digits as its factorization.

97890463427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18289152, while the sum is 59.

The spelling of 97890463427 in words is "ninety-seven billion, eight hundred ninety million, four hundred sixty-three thousand, four hundred twenty-seven".