861093426 has 16 divisors (see below), whose sum is σ = 1723457664. Its totient is φ = 286819344.

The previous prime is 861093421. The next prime is 861093427. The reversal of 861093426 is 624390168.

It is not an unprimeable number, because it can be changed into a prime (861093421) 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, 44026 + ... + 60501.

It is an arithmetic number, because the mean of its divisors is an integer number (107716104).

Almost surely, 2^861093426 is an apocalyptic number.

861093426 is an abundant number, since it is smaller than the sum of its proper divisors (862364238).

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

861093426 is a wasteful number, since it uses less digits than its factorization.

861093426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105905.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 861093426 is about 29344.3934338401. The cubic root of 861093426 is about 951.3713991963.

The spelling of 861093426 in words is "eight hundred sixty-one million, ninety-three thousand, four hundred twenty-six".