42827399 has 4 divisors (see below), whose sum is σ = 44208960. Its totient is φ = 41445840.

The previous prime is 42827383. The next prime is 42827417. The reversal of 42827399 is 99372824.

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 42827399 - 2⁴ = 42827383 is a prime.

It is a super-2 number, since 2×42827399² = 3668372210210402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42827899) 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, 690734 + ... + 690795.

It is an arithmetic number, because the mean of its divisors is an integer number (11052240).

Almost surely, 2^42827399 is an apocalyptic number.

42827399 is a deficient number, since it is larger than the sum of its proper divisors (1381561).

42827399 is a wasteful number, since it uses less digits than its factorization.

42827399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381560.

The product of its digits is 217728, while the sum is 44.

The square root of 42827399 is about 6544.2645881718. The cubic root of 42827399 is about 349.8704255052.

The spelling of 42827399 in words is "forty-two million, eight hundred twenty-seven thousand, three hundred ninety-nine".