868613903 has 4 divisors (see below), whose sum is σ = 869568288. Its totient is φ = 867659520.

The previous prime is 868613897. The next prime is 868613917. The reversal of 868613903 is 309316868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 868613903 - 2¹⁴ = 868597519 is a prime.

It is a super-2 number, since 2×868613903² = 1508980224969786818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868613983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475826 + ... + 477647.

It is an arithmetic number, because the mean of its divisors is an integer number (217392072).

Almost surely, 2^868613903 is an apocalyptic number.

868613903 is a deficient number, since it is larger than the sum of its proper divisors (954385).

868613903 is an equidigital number, since it uses as much as digits as its factorization.

868613903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954384.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 868613903 is about 29472.2564965766. The cubic root of 868613903 is about 954.1330190720.

The spelling of 868613903 in words is "eight hundred sixty-eight million, six hundred thirteen thousand, nine hundred three".