102998729 has 2 divisors, whose sum is σ = 102998730. Its totient is φ = 102998728.

The previous prime is 102998711. The next prime is 102998741. The reversal of 102998729 is 927899201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100902025 + 2096704 = 10045^2 + 1448^2 .

It is a cyclic number.

It is not a de Polignac number, because 102998729 - 2⁸ = 102998473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102998789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51499364 + 51499365.

It is an arithmetic number, because the mean of its divisors is an integer number (51499365).

Almost surely, 2^102998729 is an apocalyptic number.

It is an amenable number.

102998729 is a deficient number, since it is larger than the sum of its proper divisors (1).

102998729 is an equidigital number, since it uses as much as digits as its factorization.

102998729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 102998729 is about 10148.8289472234. The cubic root of 102998729 is about 468.7528866430.

The spelling of 102998729 in words is "one hundred two million, nine hundred ninety-eight thousand, seven hundred twenty-nine".