34991421 has 8 divisors (see below), whose sum is σ = 47023104. Its totient is φ = 23143680.

The previous prime is 34991419. The next prime is 34991431. The reversal of 34991421 is 12419943.

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

It is not a de Polignac number, because 34991421 - 2¹ = 34991419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34991431) 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, 45540 + ... + 46301.

It is an arithmetic number, because the mean of its divisors is an integer number (5877888).

Almost surely, 2^34991421 is an apocalyptic number.

It is an amenable number.

34991421 is a deficient number, since it is larger than the sum of its proper divisors (12031683).

34991421 is a wasteful number, since it uses less digits than its factorization.

34991421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91971.

The product of its digits is 7776, while the sum is 33.

The square root of 34991421 is about 5915.3546808285. The cubic root of 34991421 is about 327.0799026655.

The spelling of 34991421 in words is "thirty-four million, nine hundred ninety-one thousand, four hundred twenty-one".