934435821 has 32 divisors (see below), whose sum is σ = 1485582336. Its totient is φ = 515808000.

The previous prime is 934435819. The next prime is 934435837. The reversal of 934435821 is 128534439.

It is not a de Polignac number, because 934435821 - 2¹ = 934435819 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 934435821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (934435861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9475 + ... + 44256.

It is an arithmetic number, because the mean of its divisors is an integer number (46424448).

Almost surely, 2^934435821 is an apocalyptic number.

It is an amenable number.

934435821 is a deficient number, since it is larger than the sum of its proper divisors (551146515).

934435821 is a wasteful number, since it uses less digits than its factorization.

934435821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53793.

The product of its digits is 103680, while the sum is 39.

The square root of 934435821 is about 30568.5429976635. The cubic root of 934435821 is about 977.6494482201.

The spelling of 934435821 in words is "nine hundred thirty-four million, four hundred thirty-five thousand, eight hundred twenty-one".