42827397 has 4 divisors (see below), whose sum is σ = 57103200. Its totient is φ = 28551596.

The previous prime is 42827383. The next prime is 42827417. The reversal of 42827397 is 79372824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42827397 - 2⁴ = 42827381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42827797) 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, 7137897 + ... + 7137902.

It is an arithmetic number, because the mean of its divisors is an integer number (14275800).

Almost surely, 2^42827397 is an apocalyptic number.

It is an amenable number.

42827397 is a deficient number, since it is larger than the sum of its proper divisors (14275803).

42827397 is a wasteful number, since it uses less digits than its factorization.

42827397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14275802.

The product of its digits is 169344, while the sum is 42.

The square root of 42827397 is about 6544.2644353663. The cubic root of 42827397 is about 349.8704200590.

The spelling of 42827397 in words is "forty-two million, eight hundred twenty-seven thousand, three hundred ninety-seven".