102884729 has 2 divisors, whose sum is σ = 102884730. Its totient is φ = 102884728.

The previous prime is 102884723. The next prime is 102884737. The reversal of 102884729 is 927488201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102475129 + 409600 = 10123^2 + 640^2 .

It is a cyclic number.

It is not a de Polignac number, because 102884729 - 2⁸ = 102884473 is a prime.

It is a super-2 number, since 2×102884729² = 21170534922806882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102884723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51442364 + 51442365.

It is an arithmetic number, because the mean of its divisors is an integer number (51442365).

Almost surely, 2^102884729 is an apocalyptic number.

It is an amenable number.

102884729 is a deficient number, since it is larger than the sum of its proper divisors (1).

102884729 is an equidigital number, since it uses as much as digits as its factorization.

102884729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 102884729 is about 10143.2109807496. The cubic root of 102884729 is about 468.5798827075.

The spelling of 102884729 in words is "one hundred two million, eight hundred eighty-four thousand, seven hundred twenty-nine".