747489 has 8 divisors (see below), whose sum is σ = 1002592. Its totient is φ = 495360.

The previous prime is 747463. The next prime is 747493. The reversal of 747489 is 984747.

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

It is not a de Polignac number, because 747489 - 2⁵ = 747457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (747449) 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, 67 + ... + 1224.

It is an arithmetic number, because the mean of its divisors is an integer number (125324).

2⁷⁴⁷⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

747489 is a deficient number, since it is larger than the sum of its proper divisors (255103).

747489 is a wasteful number, since it uses less digits than its factorization.

747489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487.

The product of its digits is 56448, while the sum is 39.

The square root of 747489 is about 864.5744618019. The cubic root of 747489 is about 90.7545209444.

The spelling of 747489 in words is "seven hundred forty-seven thousand, four hundred eighty-nine".