29288239 has 2 divisors, whose sum is σ = 29288240. Its totient is φ = 29288238.

The previous prime is 29288219. The next prime is 29288261. The reversal of 29288239 is 93288292.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29288239 - 2¹³ = 29280047 is a prime.

It is a super-2 number, since 2×29288239² = 1715601887442242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29288195 and 29288204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29288219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14644119 + 14644120.

It is an arithmetic number, because the mean of its divisors is an integer number (14644120).

Almost surely, 2^29288239 is an apocalyptic number.

29288239 is a deficient number, since it is larger than the sum of its proper divisors (1).

29288239 is an equidigital number, since it uses as much as digits as its factorization.

29288239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 29288239 is about 5411.8609553461. The cubic root of 29288239 is about 308.2462155305.

The spelling of 29288239 in words is "twenty-nine million, two hundred eighty-eight thousand, two hundred thirty-nine".