34294821 has 16 divisors (see below), whose sum is σ = 50631168. Its totient is φ = 20473200.

The previous prime is 34294787. The next prime is 34294823. The reversal of 34294821 is 12849243.

It is not a de Polignac number, because 34294821 - 2¹⁰ = 34293797 is a prime.

It is a super-2 number, since 2×34294821² = 2352269494844082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34294823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5545 + ... + 9966.

It is an arithmetic number, because the mean of its divisors is an integer number (3164448).

Almost surely, 2^34294821 is an apocalyptic number.

It is an amenable number.

34294821 is a deficient number, since it is larger than the sum of its proper divisors (16336347).

34294821 is a wasteful number, since it uses less digits than its factorization.

34294821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15592.

The product of its digits is 13824, while the sum is 33.

The square root of 34294821 is about 5856.1780198351. The cubic root of 34294821 is about 324.8948646124.

The spelling of 34294821 in words is "thirty-four million, two hundred ninety-four thousand, eight hundred twenty-one".