42723827 has 4 divisors (see below), whose sum is σ = 43203960. Its totient is φ = 42243696.

The previous prime is 42723817. The next prime is 42723829. The reversal of 42723827 is 72832724.

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 42723827 - 2¹² = 42719731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42723829) 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, 239933 + ... + 240110.

It is an arithmetic number, because the mean of its divisors is an integer number (10800990).

Almost surely, 2^42723827 is an apocalyptic number.

42723827 is a deficient number, since it is larger than the sum of its proper divisors (480133).

42723827 is an equidigital number, since it uses as much as digits as its factorization.

42723827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480132.

The product of its digits is 37632, while the sum is 35.

The square root of 42723827 is about 6536.3466095366. The cubic root of 42723827 is about 349.5881604829.

The spelling of 42723827 in words is "forty-two million, seven hundred twenty-three thousand, eight hundred twenty-seven".