868907829 has 16 divisors (see below), whose sum is σ = 1225664000. Its totient is φ = 546019056.

The previous prime is 868907803. The next prime is 868907839. The reversal of 868907829 is 928709868.

It is not a de Polignac number, because 868907829 - 2⁵ = 868907797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868907839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26959 + ... + 49644.

It is an arithmetic number, because the mean of its divisors is an integer number (76604000).

Almost surely, 2^868907829 is an apocalyptic number.

It is an amenable number.

868907829 is a deficient number, since it is larger than the sum of its proper divisors (356756171).

868907829 is a wasteful number, since it uses less digits than its factorization.

868907829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76824.

The product of its (nonzero) digits is 3483648, while the sum is 57.

The square root of 868907829 is about 29477.2425609995. The cubic root of 868907829 is about 954.2406283999.

The spelling of 868907829 in words is "eight hundred sixty-eight million, nine hundred seven thousand, eight hundred twenty-nine".