97681043 has 2 divisors, whose sum is σ = 97681044. Its totient is φ = 97681042.

The previous prime is 97680959. The next prime is 97681121. The reversal of 97681043 is 34018679.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97681043 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 97680988 and 97681006.

It is not a weakly prime, because it can be changed into another prime (97681343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48840521 + 48840522.

It is an arithmetic number, because the mean of its divisors is an integer number (48840522).

Almost surely, 2^97681043 is an apocalyptic number.

97681043 is a deficient number, since it is larger than the sum of its proper divisors (1).

97681043 is an equidigital number, since it uses as much as digits as its factorization.

97681043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 97681043 is about 9883.3720460175. The cubic root of 97681043 is about 460.5429049949.

The spelling of 97681043 in words is "ninety-seven million, six hundred eighty-one thousand, forty-three".