34991321 has 8 divisors (see below), whose sum is σ = 37198440. Its totient is φ = 32800768.

The previous prime is 34991317. The next prime is 34991323. The reversal of 34991321 is 12319943.

It can be written as a sum of positive squares in 4 ways, for example, as 22992025 + 11999296 = 4795^2 + 3464^2 .

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 34991321 - 2² = 34991317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34991323) 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, 365 + ... + 8373.

It is an arithmetic number, because the mean of its divisors is an integer number (4649805).

Almost surely, 2^34991321 is an apocalyptic number.

It is an amenable number.

34991321 is a deficient number, since it is larger than the sum of its proper divisors (2207119).

34991321 is a wasteful number, since it uses less digits than its factorization.

34991321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8283.

The product of its digits is 5832, while the sum is 32.

The square root of 34991321 is about 5915.3462282440. The cubic root of 34991321 is about 327.0795910842.

The spelling of 34991321 in words is "thirty-four million, nine hundred ninety-one thousand, three hundred twenty-one".