29864381 has 2 divisors, whose sum is σ = 29864382. Its totient is φ = 29864380.

The previous prime is 29864363. The next prime is 29864413. The reversal of 29864381 is 18346892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16240900 + 13623481 = 4030^2 + 3691^2 .

It is a cyclic number.

It is not a de Polignac number, because 29864381 - 2¹⁰ = 29863357 is a prime.

It is a super-2 number, since 2×29864381² = 1783762505026322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29864311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14932190 + 14932191.

It is an arithmetic number, because the mean of its divisors is an integer number (14932191).

Almost surely, 2^29864381 is an apocalyptic number.

It is an amenable number.

29864381 is a deficient number, since it is larger than the sum of its proper divisors (1).

29864381 is an equidigital number, since it uses as much as digits as its factorization.

29864381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 29864381 is about 5464.8312874232. The cubic root of 29864381 is about 310.2543213034.

The spelling of 29864381 in words is "twenty-nine million, eight hundred sixty-four thousand, three hundred eighty-one".