7040857 has 8 divisors (see below), whose sum is σ = 7204032. Its totient is φ = 6879600.

The previous prime is 7040843. The next prime is 7040861. The reversal of 7040857 is 7580407.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7040857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7040827) 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, 8923 + ... + 9679.

It is an arithmetic number, because the mean of its divisors is an integer number (900504).

Almost surely, 2^7040857 is an apocalyptic number.

It is an amenable number.

7040857 is a deficient number, since it is larger than the sum of its proper divisors (163175).

7040857 is a wasteful number, since it uses less digits than its factorization.

7040857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 7040857 is about 2653.4613243837. The cubic root of 7040857 is about 191.6645709496.

The spelling of 7040857 in words is "seven million, forty thousand, eight hundred fifty-seven".