34997381 has 8 divisors (see below), whose sum is σ = 35610840. Its totient is φ = 34388992.

The previous prime is 34997377. The next prime is 34997387. The reversal of 34997381 is 18379943.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14212900 + 20784481 = 3770^2 + 4559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34997381 - 2² = 34997377 is a prime.

It is a super-2 number, since 2×34997381² = 2449633353718322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34997387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14261 + ... + 16533.

It is an arithmetic number, because the mean of its divisors is an integer number (4451355).

Almost surely, 2^34997381 is an apocalyptic number.

It is an amenable number.

34997381 is a deficient number, since it is larger than the sum of its proper divisors (613459).

34997381 is a wasteful number, since it uses less digits than its factorization.

34997381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2535.

The product of its digits is 163296, while the sum is 44.

The square root of 34997381 is about 5915.8584330594. The cubic root of 34997381 is about 327.0984718414.

The spelling of 34997381 in words is "thirty-four million, nine hundred ninety-seven thousand, three hundred eighty-one".