934521853 has 4 divisors (see below), whose sum is σ = 934915420. Its totient is φ = 934128288.

The previous prime is 934521851. The next prime is 934521857. The reversal of 934521853 is 358125439.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 358125439 = 7 ⋅51160777.

It can be written as a sum of positive squares in 2 ways, for example, as 127848249 + 806673604 = 11307^2 + 28402^2 .

It is a cyclic number.

It is not a de Polignac number, because 934521853 - 2¹ = 934521851 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 (934521851) 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, 193200 + ... + 197977.

It is an arithmetic number, because the mean of its divisors is an integer number (233728855).

Almost surely, 2^934521853 is an apocalyptic number.

It is an amenable number.

934521853 is a deficient number, since it is larger than the sum of its proper divisors (393567).

934521853 is a wasteful number, since it uses less digits than its factorization.

934521853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393566.

The product of its digits is 129600, while the sum is 40.

The square root of 934521853 is about 30569.9501635184. The cubic root of 934521853 is about 977.6794508356.

The spelling of 934521853 in words is "nine hundred thirty-four million, five hundred twenty-one thousand, eight hundred fifty-three".