787449 has 16 divisors (see below), whose sum is σ = 1152704. Its totient is φ = 475200.

The previous prime is 787447. The next prime is 787469. The reversal of 787449 is 944787.

787449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 787449 - 2¹ = 787447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (787447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2214 + ... + 2544.

It is an arithmetic number, because the mean of its divisors is an integer number (72044).

2⁷⁸⁷⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

787449 is a deficient number, since it is larger than the sum of its proper divisors (365255).

787449 is a wasteful number, since it uses less digits than its factorization.

787449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408.

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

The square root of 787449 is about 887.3832317550. The cubic root of 787449 is about 92.3437439841.

The spelling of 787449 in words is "seven hundred eighty-seven thousand, four hundred forty-nine".