1026847864 has 64 divisors (see below), whose sum is σ = 2251800000. Its totient is φ = 429871104.

The previous prime is 1026847853. The next prime is 1026847879. The reversal of 1026847864 is 4687486201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821512 + ... + 822760.

It is an arithmetic number, because the mean of its divisors is an integer number (35184375).

Almost surely, 2^1026847864 is an apocalyptic number.

1026847864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1026847864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1125900000).

1026847864 is an abundant number, since it is smaller than the sum of its proper divisors (1224952136).

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

1026847864 is a wasteful number, since it uses less digits than its factorization.

1026847864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592 (or 1588 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 1026847864 is about 32044.4669794959. The cubic root of 1026847864 is about 1008.8703718526.

The spelling of 1026847864 in words is "one billion, twenty-six million, eight hundred forty-seven thousand, eight hundred sixty-four".