42793231 has 8 divisors (see below), whose sum is σ = 46866960. Its totient is φ = 38831232.

The previous prime is 42793229. The next prime is 42793243. The reversal of 42793231 is 13239724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42793231 - 2¹ = 42793229 is a prime.

It is a super-2 number, since 2×42793231² = 3662521238838722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42793193 and 42793202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42793211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27130 + ... + 28663.

It is an arithmetic number, because the mean of its divisors is an integer number (5858370).

Almost surely, 2^42793231 is an apocalyptic number.

42793231 is a deficient number, since it is larger than the sum of its proper divisors (4073729).

42793231 is a wasteful number, since it uses less digits than its factorization.

42793231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55865.

The product of its digits is 9072, while the sum is 31.

The square root of 42793231 is about 6541.6535371418. The cubic root of 42793231 is about 349.7773577224. Note that the first 3 decimals are identical.

The spelling of 42793231 in words is "forty-two million, seven hundred ninety-three thousand, two hundred thirty-one".