868273990 has 16 divisors (see below), whose sum is σ = 1582678080. Its totient is φ = 342912960.

The previous prime is 868273979. The next prime is 868273993. The reversal of 868273990 is 99372868.

868273990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868273993) 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, 548751 + ... + 550330.

It is an arithmetic number, because the mean of its divisors is an integer number (98917380).

Almost surely, 2^868273990 is an apocalyptic number.

868273990 is a deficient number, since it is larger than the sum of its proper divisors (714404090).

868273990 is a wasteful number, since it uses less digits than its factorization.

868273990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099167.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 868273990 is about 29466.4892717134. The cubic root of 868273990 is about 954.0085431568.

The spelling of 868273990 in words is "eight hundred sixty-eight million, two hundred seventy-three thousand, nine hundred ninety".