474989 has 4 divisors (see below), whose sum is σ = 476700. Its totient is φ = 473280.

The previous prime is 474983. The next prime is 475037. The reversal of 474989 is 989474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 989474 = 2 ⋅494737.

It can be written as a sum of positive squares in 2 ways, for example, as 209764 + 265225 = 458^2 + 515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474989 is a prime.

It is a super-2 number, since 2×474989² = 451229100242, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474983) 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, 332 + ... + 1029.

It is an arithmetic number, because the mean of its divisors is an integer number (119175).

2⁴⁷⁴⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

474989 is a deficient number, since it is larger than the sum of its proper divisors (1711).

474989 is a wasteful number, since it uses less digits than its factorization.

474989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710.

The product of its digits is 72576, while the sum is 41.

The square root of 474989 is about 689.1944573196. The cubic root of 474989 is about 78.0239352361.

The spelling of 474989 in words is "four hundred seventy-four thousand, nine hundred eighty-nine".