29768157 has 6 divisors (see below), whose sum is σ = 42998462. Its totient is φ = 19845432.

The previous prime is 29768143. The next prime is 29768161. The reversal of 29768157 is 75186792.

It can be written as a sum of positive squares in only one way, i.e., 29713401 + 54756 = 5451^2 + 234^2 .

It is not a de Polignac number, because 29768157 - 2⁶ = 29768093 is a prime.

It is a super-2 number, since 2×29768157² = 1772286342353298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29768107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1653778 + ... + 1653795.

Almost surely, 2^29768157 is an apocalyptic number.

It is an amenable number.

29768157 is a deficient number, since it is larger than the sum of its proper divisors (13230305).

29768157 is a wasteful number, since it uses less digits than its factorization.

29768157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307579 (or 3307576 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 29768157 is about 5456.0202528950. The cubic root of 29768157 is about 309.9207463026.

The spelling of 29768157 in words is "twenty-nine million, seven hundred sixty-eight thousand, one hundred fifty-seven".