29430397 has 2 divisors, whose sum is σ = 29430398. Its totient is φ = 29430396.

The previous prime is 29430391. The next prime is 29430433. The reversal of 29430397 is 79303492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20985561 + 8444836 = 4581^2 + 2906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29430397 is a prime.

It is a super-2 number, since 2×29430397² = 1732296535155218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29430391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14715198 + 14715199.

It is an arithmetic number, because the mean of its divisors is an integer number (14715199).

Almost surely, 2^29430397 is an apocalyptic number.

It is an amenable number.

29430397 is a deficient number, since it is larger than the sum of its proper divisors (1).

29430397 is an equidigital number, since it uses as much as digits as its factorization.

29430397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 29430397 is about 5424.9789861344. The cubic root of 29430397 is about 308.7441282410.

The spelling of 29430397 in words is "twenty-nine million, four hundred thirty thousand, three hundred ninety-seven".