42672447 has 8 divisors (see below), whose sum is σ = 63218480. Its totient is φ = 28448280.

The previous prime is 42672437. The next prime is 42672451. The reversal of 42672447 is 74427624.

It is a happy number.

42672447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42672447 - 2¹⁵ = 42639679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42672407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790204 + ... + 790257.

It is an arithmetic number, because the mean of its divisors is an integer number (7902310).

Almost surely, 2^42672447 is an apocalyptic number.

42672447 is a deficient number, since it is larger than the sum of its proper divisors (20546033).

42672447 is a wasteful number, since it uses less digits than its factorization.

42672447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580470 (or 1580464 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The square root of 42672447 is about 6532.4150970372. The cubic root of 42672447 is about 349.4479651391.

The spelling of 42672447 in words is "forty-two million, six hundred seventy-two thousand, four hundred forty-seven".