1025986 has 8 divisors (see below), whose sum is σ = 1657404. Its totient is φ = 473520.

The previous prime is 1025957. The next prime is 1026029. The reversal of 1025986 is 6895201.

It can be written as a sum of positive squares in 2 ways, for example, as 938961 + 87025 = 969^2 + 295^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19705 + ... + 19756.

2^1025986 is an apocalyptic number.

1025986 is a deficient number, since it is larger than the sum of its proper divisors (631418).

1025986 is a wasteful number, since it uses less digits than its factorization.

1025986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39476.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1025986 is about 1012.9096702076. The cubic root of 1025986 is about 100.8588034528.

The spelling of 1025986 in words is "one million, twenty-five thousand, nine hundred eighty-six".