556969 has 8 divisors (see below), whose sum is σ = 641088. Its totient is φ = 474000.

The previous prime is 556967. The next prime is 556981. The reversal of 556969 is 969655.

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

It is a cyclic number.

It is not a de Polignac number, because 556969 - 2¹ = 556967 is a prime.

It is a super-2 number, since 2×556969² = 620428933922, which contains 22 as substring.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (556967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1599 + ... + 1915.

It is an arithmetic number, because the mean of its divisors is an integer number (80136).

2⁵⁵⁶⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

556969 is a deficient number, since it is larger than the sum of its proper divisors (84119).

556969 is a wasteful number, since it uses less digits than its factorization.

556969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575.

The product of its digits is 72900, while the sum is 40.

The square root of 556969 is about 746.3035575421. The cubic root of 556969 is about 82.2767271782.

Subtracting 556969 from its reverse (969655), we obtain a triangular number (412686 = T₉₀₈).

It can be divided in two parts, 55696 and 9, that multiplied together give a square (501264 = 708²).

The spelling of 556969 in words is "five hundred fifty-six thousand, nine hundred sixty-nine".