981469 has 4 divisors (see below), whose sum is σ = 984060. Its totient is φ = 978880.

The previous prime is 981467. The next prime is 981473. The reversal of 981469 is 964189.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 280900 + 700569 = 530^2 + 837^2 .

It is a cyclic number.

It is not a de Polignac number, because 981469 - 2¹ = 981467 is a prime.

It is a super-2 number, since 2×981469² = 1926562795922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604 + ... + 1525.

It is an arithmetic number, because the mean of its divisors is an integer number (246015).

2⁹⁸¹⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

981469 is a deficient number, since it is larger than the sum of its proper divisors (2591).

981469 is a wasteful number, since it uses less digits than its factorization.

981469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590.

The product of its digits is 15552, while the sum is 37.

The square root of 981469 is about 990.6911728687. The cubic root of 981469 is about 99.3784446942.

The spelling of 981469 in words is "nine hundred eighty-one thousand, four hundred sixty-nine".