1016990 has 16 divisors (see below), whose sum is σ = 1971648. Its totient is φ = 375456.

The previous prime is 1016971. The next prime is 1017007. The reversal of 1016990 is 996101.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3782 + ... + 4041.

It is an arithmetic number, because the mean of its divisors is an integer number (123228).

2^1016990 is an apocalyptic number.

1016990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1016990 is a deficient number, since it is larger than the sum of its proper divisors (954658).

1016990 is a wasteful number, since it uses less digits than its factorization.

1016990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7843.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 1016990 is about 1008.4592207918. The cubic root of 1016990 is about 100.5631559339.

The spelling of 1016990 in words is "one million, sixteen thousand, nine hundred ninety".