33979427 has 4 divisors (see below), whose sum is σ = 34076040. Its totient is φ = 33882816.

The previous prime is 33979409. The next prime is 33979433. The reversal of 33979427 is 72497933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72497933 = 31 ⋅2338643.

It is a cyclic number.

It is not a de Polignac number, because 33979427 - 2²² = 29785123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33279427) 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 3 ways as a sum of consecutive naturals, for example, 47777 + ... + 48482.

It is an arithmetic number, because the mean of its divisors is an integer number (8519010).

Almost surely, 2^33979427 is an apocalyptic number.

33979427 is a deficient number, since it is larger than the sum of its proper divisors (96613).

33979427 is an equidigital number, since it uses as much as digits as its factorization.

33979427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96612.

The product of its digits is 285768, while the sum is 44.

The square root of 33979427 is about 5829.1875077064. The cubic root of 33979427 is about 323.8958252446.

The spelling of 33979427 in words is "thirty-three million, nine hundred seventy-nine thousand, four hundred twenty-seven".