30694997 has 2 divisors, whose sum is σ = 30694998. Its totient is φ = 30694996.

The previous prime is 30694969. The next prime is 30695033. The reversal of 30694997 is 79949603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18028516 + 12666481 = 4246^2 + 3559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30694997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30694907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15347498 + 15347499.

It is an arithmetic number, because the mean of its divisors is an integer number (15347499).

Almost surely, 2^30694997 is an apocalyptic number.

It is an amenable number.

30694997 is a deficient number, since it is larger than the sum of its proper divisors (1).

30694997 is an equidigital number, since it uses as much as digits as its factorization.

30694997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 30694997 is about 5540.3065799647. The cubic root of 30694997 is about 313.1044199711.

The spelling of 30694997 in words is "thirty million, six hundred ninety-four thousand, nine hundred ninety-seven".