806253851 has 4 divisors (see below), whose sum is σ = 868273392. Its totient is φ = 744234312.

The previous prime is 806253841. The next prime is 806253857. The reversal of 806253851 is 158352608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-806253851 is a prime.

It is a super-3 number, since 3×806253851³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806253857) 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, 31009751 + ... + 31009776.

It is an arithmetic number, because the mean of its divisors is an integer number (217068348).

Almost surely, 2^806253851 is an apocalyptic number.

806253851 is a deficient number, since it is larger than the sum of its proper divisors (62019541).

806253851 is a wasteful number, since it uses less digits than its factorization.

806253851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62019540.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 806253851 is about 28394.6095412492. The cubic root of 806253851 is about 930.7304743848.

The spelling of 806253851 in words is "eight hundred six million, two hundred fifty-three thousand, eight hundred fifty-one".