29001997 has 2 divisors, whose sum is σ = 29001998. Its totient is φ = 29001996.

The previous prime is 29001991. The next prime is 29002021. The reversal of 29001997 is 79910092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15319396 + 13682601 = 3914^2 + 3699^2 .

It is a cyclic number.

It is not a de Polignac number, because 29001997 - 2³ = 29001989 is a prime.

It is a super-3 number, since 3×29001997³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29001991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14500998 + 14500999.

It is an arithmetic number, because the mean of its divisors is an integer number (14500999).

Almost surely, 2^29001997 is an apocalyptic number.

It is an amenable number.

29001997 is a deficient number, since it is larger than the sum of its proper divisors (1).

29001997 is an equidigital number, since it uses as much as digits as its factorization.

29001997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 29001997 is about 5385.3502207377. The cubic root of 29001997 is about 307.2387346098.

The spelling of 29001997 in words is "twenty-nine million, one thousand, nine hundred ninety-seven".