29670997 has 2 divisors, whose sum is σ = 29670998. Its totient is φ = 29670996.

The previous prime is 29670983. The next prime is 29671007. The reversal of 29670997 is 79907692.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22905796 + 6765201 = 4786^2 + 2601^2 .

It is a cyclic number.

It is not a de Polignac number, because 29670997 - 2⁷ = 29670869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29670997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29670947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14835498 + 14835499.

It is an arithmetic number, because the mean of its divisors is an integer number (14835499).

Almost surely, 2^29670997 is an apocalyptic number.

It is an amenable number.

29670997 is a deficient number, since it is larger than the sum of its proper divisors (1).

29670997 is an equidigital number, since it uses as much as digits as its factorization.

29670997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 29670997 is about 5447.1090497621. The cubic root of 29670997 is about 309.5831963507.

The spelling of 29670997 in words is "twenty-nine million, six hundred seventy thousand, nine hundred ninety-seven".