42793511 has 4 divisors (see below), whose sum is σ = 42828000. Its totient is φ = 42759024.

The previous prime is 42793493. The next prime is 42793523. The reversal of 42793511 is 11539724.

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 42793511 - 2¹⁴ = 42777127 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 (42793591) 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, 15311 + ... + 17888.

It is an arithmetic number, because the mean of its divisors is an integer number (10707000).

Almost surely, 2^42793511 is an apocalyptic number.

42793511 is a deficient number, since it is larger than the sum of its proper divisors (34489).

42793511 is a wasteful number, since it uses less digits than its factorization.

42793511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34488.

The product of its digits is 7560, while the sum is 32.

The square root of 42793511 is about 6541.6749384236. The cubic root of 42793511 is about 349.7781205957.

The spelling of 42793511 in words is "forty-two million, seven hundred ninety-three thousand, five hundred eleven".