129876896 has 24 divisors (see below), whose sum is σ = 256415040. Its totient is φ = 64755648.

The previous prime is 129876881. The next prime is 129876911. The reversal of 129876896 is 698678921.

It is an interprime number because it is at equal distance from previous prime (129876881) and next prime (129876911).

It is a super-2 number, since 2×129876896² = 33736016229189632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6215 + ... + 17273.

It is an arithmetic number, because the mean of its divisors is an integer number (10683960).

Almost surely, 2^129876896 is an apocalyptic number.

129876896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

129876896 is a deficient number, since it is larger than the sum of its proper divisors (126538144).

129876896 is a wasteful number, since it uses less digits than its factorization.

129876896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11436 (or 11428 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 56.

The square root of 129876896 is about 11396.3545048406. The cubic root of 129876896 is about 506.4197488777.

The spelling of 129876896 in words is "one hundred twenty-nine million, eight hundred seventy-six thousand, eight hundred ninety-six".