42776471 has 4 divisors (see below), whose sum is σ = 45292752. Its totient is φ = 40260192.

The previous prime is 42776417. The next prime is 42776491. The reversal of 42776471 is 17467724.

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 42776471 - 2¹⁴ = 42760087 is a prime.

It is a super-3 number, since 3×42776471³ (a number of 24 digits) contains 333 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 (42776401) 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, 1258115 + ... + 1258148.

It is an arithmetic number, because the mean of its divisors is an integer number (11323188).

Almost surely, 2^42776471 is an apocalyptic number.

42776471 is a deficient number, since it is larger than the sum of its proper divisors (2516281).

42776471 is a wasteful number, since it uses less digits than its factorization.

42776471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516280.

The product of its digits is 65856, while the sum is 38.

The square root of 42776471 is about 6540.3723900096. The cubic root of 42776471 is about 349.7316882410.

The spelling of 42776471 in words is "forty-two million, seven hundred seventy-six thousand, four hundred seventy-one".