542828723 has 4 divisors (see below), whose sum is σ = 542913000. Its totient is φ = 542744448.

The previous prime is 542828719. The next prime is 542828731. The reversal of 542828723 is 327828245.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 542828723 - 2² = 542828719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542828023) 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, 31598 + ... + 45651.

It is an arithmetic number, because the mean of its divisors is an integer number (135728250).

Almost surely, 2^542828723 is an apocalyptic number.

542828723 is a deficient number, since it is larger than the sum of its proper divisors (84277).

542828723 is an equidigital number, since it uses as much as digits as its factorization.

542828723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84276.

The product of its digits is 215040, while the sum is 41.

The square root of 542828723 is about 23298.6850058110. The cubic root of 542828723 is about 815.7447233285.

The spelling of 542828723 in words is "five hundred forty-two million, eight hundred twenty-eight thousand, seven hundred twenty-three".