97054891 has 2 divisors, whose sum is σ = 97054892. Its totient is φ = 97054890.

The previous prime is 97054883. The next prime is 97054901. The reversal of 97054891 is 19845079.

It is a weak prime.

It is an emirp because it is prime and its reverse (19845079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97054891 - 2³ = 97054883 is a prime.

It is not a weakly prime, because it can be changed into another prime (97054801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48527445 + 48527446.

It is an arithmetic number, because the mean of its divisors is an integer number (48527446).

Almost surely, 2^97054891 is an apocalyptic number.

97054891 is a deficient number, since it is larger than the sum of its proper divisors (1).

97054891 is an equidigital number, since it uses as much as digits as its factorization.

97054891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 97054891 is about 9851.6440759906. The cubic root of 97054891 is about 459.5567421994.

The spelling of 97054891 in words is "ninety-seven million, fifty-four thousand, eight hundred ninety-one".