30696997 has 2 divisors, whose sum is σ = 30696998. Its totient is φ = 30696996.

The previous prime is 30696971. The next prime is 30697001. The reversal of 30696997 is 79969603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19945156 + 10751841 = 4466^2 + 3279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30696997 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30696997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30690997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15348498 + 15348499.

It is an arithmetic number, because the mean of its divisors is an integer number (15348499).

Almost surely, 2^30696997 is an apocalyptic number.

It is an amenable number.

30696997 is a deficient number, since it is larger than the sum of its proper divisors (1).

30696997 is an equidigital number, since it uses as much as digits as its factorization.

30696997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 551124, while the sum is 49.

The square root of 30696997 is about 5540.4870724513. The cubic root of 30696997 is about 313.1112201590. Note that the first 3 decimals are identical.

The spelling of 30696997 in words is "thirty million, six hundred ninety-six thousand, nine hundred ninety-seven".