729908469 has 8 divisors (see below), whose sum is σ = 1081345920. Its totient is φ = 486605628.

The previous prime is 729908461. The next prime is 729908477. The reversal of 729908469 is 964809927.

It is an interprime number because it is at equal distance from previous prime (729908461) and next prime (729908477).

It is not a de Polignac number, because 729908469 - 2³ = 729908461 is a prime.

It is a super-2 number, since 2×729908469² = 1065532746235847922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729908461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13516797 + ... + 13516850.

It is an arithmetic number, because the mean of its divisors is an integer number (135168240).

Almost surely, 2^729908469 is an apocalyptic number.

It is an amenable number.

729908469 is a deficient number, since it is larger than the sum of its proper divisors (351437451).

729908469 is a wasteful number, since it uses less digits than its factorization.

729908469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27033656 (or 27033650 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 729908469 is about 27016.8182619642. The cubic root of 729908469 is about 900.3737003652.

The spelling of 729908469 in words is "seven hundred twenty-nine million, nine hundred eight thousand, four hundred sixty-nine".