97429691 has 2 divisors, whose sum is σ = 97429692. Its totient is φ = 97429690.

The previous prime is 97429603. The next prime is 97429711. The reversal of 97429691 is 19692479.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97429691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97420691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48714845 + 48714846.

It is an arithmetic number, because the mean of its divisors is an integer number (48714846).

Almost surely, 2^97429691 is an apocalyptic number.

97429691 is a deficient number, since it is larger than the sum of its proper divisors (1).

97429691 is an equidigital number, since it uses as much as digits as its factorization.

97429691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 47.

The square root of 97429691 is about 9870.6479523889. The cubic root of 97429691 is about 460.1475440379.

The spelling of 97429691 in words is "ninety-seven million, four hundred twenty-nine thousand, six hundred ninety-one".