34779381 has 64 divisors (see below), whose sum is σ = 61931520. Its totient is φ = 16853760.

The previous prime is 34779373. The next prime is 34779397. The reversal of 34779381 is 18397743.

It is not a de Polignac number, because 34779381 - 2³ = 34779373 is a prime.

It is a super-2 number, since 2×34779381² = 2419210685486322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34779301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 181996 + ... + 182186.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^34779381 is an apocalyptic number.

It is an amenable number.

34779381 is a deficient number, since it is larger than the sum of its proper divisors (27152139).

34779381 is a wasteful number, since it uses less digits than its factorization.

34779381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266.

The product of its digits is 127008, while the sum is 42.

The square root of 34779381 is about 5897.4045986349. The cubic root of 34779381 is about 326.4178871968.

The spelling of 34779381 in words is "thirty-four million, seven hundred seventy-nine thousand, three hundred eighty-one".