29724032397 has 8 divisors (see below), whose sum is σ = 39642281056. Its totient is φ = 19810902672.

The previous prime is 29724032389. The next prime is 29724032407. The reversal of 29724032397 is 79323042792.

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

It is not a de Polignac number, because 29724032397 - 2³ = 29724032389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29724032197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1266163 + ... + 1289424.

It is an arithmetic number, because the mean of its divisors is an integer number (4955285132).

Almost surely, 2^29724032397 is an apocalyptic number.

It is an amenable number.

29724032397 is a deficient number, since it is larger than the sum of its proper divisors (9918248659).

29724032397 is a wasteful number, since it uses less digits than its factorization.

29724032397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559467.

The product of its (nonzero) digits is 1143072, while the sum is 48.

The spelling of 29724032397 in words is "twenty-nine billion, seven hundred twenty-four million, thirty-two thousand, three hundred ninety-seven".