861746652 has 36 divisors (see below), whose sum is σ = 2345867160. Its totient is φ = 265152672.

The previous prime is 861746623. The next prime is 861746657. The reversal of 861746652 is 256647168.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 861746598 and 861746607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861746657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 920202 + ... + 921137.

Almost surely, 2^861746652 is an apocalyptic number.

It is an amenable number.

861746652 is an abundant number, since it is smaller than the sum of its proper divisors (1484120508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

861746652 is a wasteful number, since it uses less digits than its factorization.

861746652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841362 (or 1841357 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 861746652 is about 29355.5216611799. The cubic root of 861746652 is about 951.6119086982.

The spelling of 861746652 in words is "eight hundred sixty-one million, seven hundred forty-six thousand, six hundred fifty-two".