1090678859 has 16 divisors (see below), whose sum is σ = 1159888896. Its totient is φ = 1023775200.

The previous prime is 1090678829. The next prime is 1090678867. The reversal of 1090678859 is 9588760901.

It is a de Polignac number, because none of the positive numbers 2^k-1090678859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1090678859.

It is not an unprimeable number, because it can be changed into a prime (1090678829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419654 + ... + 422244.

It is an arithmetic number, because the mean of its divisors is an integer number (72493056).

Almost surely, 2^1090678859 is an apocalyptic number.

1090678859 is a deficient number, since it is larger than the sum of its proper divisors (69210037).

1090678859 is a wasteful number, since it uses less digits than its factorization.

1090678859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 1090678859 is about 33025.4274612760. The cubic root of 1090678859 is about 1029.3560744113.

The spelling of 1090678859 in words is "one billion, ninety million, six hundred seventy-eight thousand, eight hundred fifty-nine".