742827 has 4 divisors (see below), whose sum is σ = 990440. Its totient is φ = 495216.

The previous prime is 742817. The next prime is 742891. The reversal of 742827 is 728247.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 742827 - 2⁷ = 742699 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 742794 and 742803.

It is not an unprimeable number, because it can be changed into a prime (742817) 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, 123802 + ... + 123807.

It is an arithmetic number, because the mean of its divisors is an integer number (247610).

2⁷⁴²⁸²⁷ is an apocalyptic number.

742827 is a deficient number, since it is larger than the sum of its proper divisors (247613).

742827 is a wasteful number, since it uses less digits than its factorization.

742827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247612.

The product of its digits is 6272, while the sum is 30.

The square root of 742827 is about 861.8741207392. The cubic root of 742827 is about 90.5654522802.

The spelling of 742827 in words is "seven hundred forty-two thousand, eight hundred twenty-seven".