736489 has 8 divisors (see below), whose sum is σ = 800072. Its totient is φ = 673920.

The previous prime is 736471. The next prime is 736511. The reversal of 736489 is 984637.

It can be written as a sum of positive squares in 4 ways, for example, as 166464 + 570025 = 408^2 + 755^2 .

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

It is not a de Polignac number, because 736489 - 2⁷ = 736361 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (736409) 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, 2197 + ... + 2509.

It is an arithmetic number, because the mean of its divisors is an integer number (100009).

2⁷³⁶⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

736489 is a deficient number, since it is larger than the sum of its proper divisors (63583).

736489 is a wasteful number, since it uses less digits than its factorization.

736489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507.

The product of its digits is 36288, while the sum is 37.

The square root of 736489 is about 858.1893730407. The cubic root of 736489 is about 90.3071399420.

It can be divided in two parts, 736 and 489, that added together give a triangular number (1225 = T₄₉).

The spelling of 736489 in words is "seven hundred thirty-six thousand, four hundred eighty-nine".