1029874869 has 6 divisors (see below), whose sum is σ = 1487597046. Its totient is φ = 686583240.

The previous prime is 1029874823. The next prime is 1029874891. The reversal of 1029874869 is 9684789201.

It can be written as a sum of positive squares in only one way, i.e., 980003025 + 49871844 = 31305^2 + 7062^2 .

It is not a de Polignac number, because 1029874869 - 2¹⁷ = 1029743797 is a prime.

It is a super-2 number, since 2×1029874869² = 2121284491595534322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029874969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57215262 + ... + 57215279.

It is an arithmetic number, because the mean of its divisors is an integer number (247932841).

Almost surely, 2^1029874869 is an apocalyptic number.

It is an amenable number.

1029874869 is a deficient number, since it is larger than the sum of its proper divisors (457722177).

1029874869 is a wasteful number, since it uses less digits than its factorization.

1029874869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114430547 (or 114430544 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 1029874869 is about 32091.6635436682. The cubic root of 1029874869 is about 1009.8607359532.

The spelling of 1029874869 in words is "one billion, twenty-nine million, eight hundred seventy-four thousand, eight hundred sixty-nine".