3500249857 has 8 divisors (see below), whose sum is σ = 3790328360. Its totient is φ = 3213146880.

The previous prime is 3500249813. The next prime is 3500249873. The reversal of 3500249857 is 7589420053.

It can be written as a sum of positive squares in 4 ways, for example, as 259338816 + 3240911041 = 16104^2 + 56929^2 .

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 3500249857 - 2⁷ = 3500249729 is a prime.

It is a super-2 number, since 2×3500249857² = 24503498122857040898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3500249887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741432 + ... + 746137.

It is an arithmetic number, because the mean of its divisors is an integer number (473791045).

Almost surely, 2^3500249857 is an apocalyptic number.

It is an amenable number.

3500249857 is a deficient number, since it is larger than the sum of its proper divisors (290078503).

3500249857 is a wasteful number, since it uses less digits than its factorization.

3500249857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487763.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 3500249857 is about 59162.9094703768. The cubic root of 3500249857 is about 1518.3306142691.

The spelling of 3500249857 in words is "three billion, five hundred million, two hundred forty-nine thousand, eight hundred fifty-seven".