1071864 has 24 divisors (see below), whose sum is σ = 2903160. Its totient is φ = 357264.

The previous prime is 1071857. The next prime is 1071871. The reversal of 1071864 is 4681701.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1071857) and next prime (1071871).

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1071864² = 2297784868992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7372 + ... + 7515.

It is an arithmetic number, because the mean of its divisors is an integer number (120965).

2^1071864 is an apocalyptic number.

It is an amenable number.

1071864 is an abundant number, since it is smaller than the sum of its proper divisors (1831296).

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

1071864 is a wasteful number, since it uses less digits than its factorization.

1071864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14899 (or 14892 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1071864 is about 1035.3086496306. The cubic root of 1071864 is about 102.3402707498.

The spelling of 1071864 in words is "one million, seventy-one thousand, eight hundred sixty-four".