29027887397 has 2 divisors, whose sum is σ = 29027887398. Its totient is φ = 29027887396.

The previous prime is 29027887363. The next prime is 29027887409. The reversal of 29027887397 is 79378872092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25114008676 + 3913878721 = 158474^2 + 62561^2 .

It is a cyclic number.

It is not a de Polignac number, because 29027887397 - 2⁶ = 29027887333 is a prime.

It is a super-2 number, since 2×29027887397² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29027887897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14513943698 + 14513943699.

It is an arithmetic number, because the mean of its divisors is an integer number (14513943699).

Almost surely, 2^29027887397 is an apocalyptic number.

It is an amenable number.

29027887397 is a deficient number, since it is larger than the sum of its proper divisors (1).

29027887397 is an equidigital number, since it uses as much as digits as its factorization.

29027887397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21337344, while the sum is 62.

The spelling of 29027887397 in words is "twenty-nine billion, twenty-seven million, eight hundred eighty-seven thousand, three hundred ninety-seven".