861732103 has 4 divisors (see below), whose sum is σ = 863052408. Its totient is φ = 860411800.

The previous prime is 861732059. The next prime is 861732107. The reversal of 861732103 is 301237168.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-861732103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861732107) 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, 659173 + ... + 660478.

It is an arithmetic number, because the mean of its divisors is an integer number (215763102).

Almost surely, 2^861732103 is an apocalyptic number.

861732103 is a deficient number, since it is larger than the sum of its proper divisors (1320305).

861732103 is a wasteful number, since it uses less digits than its factorization.

861732103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320304.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 861732103 is about 29355.2738532619. The cubic root of 861732103 is about 951.6065532651.

The spelling of 861732103 in words is "eight hundred sixty-one million, seven hundred thirty-two thousand, one hundred three".