34991986 has 8 divisors (see below), whose sum is σ = 52564140. Its totient is φ = 17470608.

The previous prime is 34991959. The next prime is 34991987. The reversal of 34991986 is 68919943.

It can be written as a sum of positive squares in 2 ways, for example, as 34987225 + 4761 = 5915^2 + 69^2 .

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

It is not an unprimeable number, because it can be changed into a prime (34991987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10921 + ... + 13756.

Almost surely, 2^34991986 is an apocalyptic number.

34991986 is a deficient number, since it is larger than the sum of its proper divisors (17572154).

34991986 is a wasteful number, since it uses less digits than its factorization.

34991986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25388.

The product of its digits is 419904, while the sum is 49.

The square root of 34991986 is about 5915.4024377045. The cubic root of 34991986 is about 327.0816630889.

The spelling of 34991986 in words is "thirty-four million, nine hundred ninety-one thousand, nine hundred eighty-six".