29797970 has 8 divisors (see below), whose sum is σ = 53636364. Its totient is φ = 11919184.

The previous prime is 29797927. The next prime is 29797973. The reversal of 29797970 is 7979792.

It can be written as a sum of positive squares in 2 ways, for example, as 28058209 + 1739761 = 5297^2 + 1319^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×29797970² = 1775838032241800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29797973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489889 + ... + 1489908.

Almost surely, 2^29797970 is an apocalyptic number.

29797970 is a deficient number, since it is larger than the sum of its proper divisors (23838394).

29797970 is a wasteful number, since it uses less digits than its factorization.

29797970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979804.

The product of its (nonzero) digits is 500094, while the sum is 50.

The square root of 29797970 is about 5458.7516888021. The cubic root of 29797970 is about 310.0241743201.

The spelling of 29797970 in words is "twenty-nine million, seven hundred ninety-seven thousand, nine hundred seventy".