34684991 has 16 divisors (see below), whose sum is σ = 38880000. Its totient is φ = 30676800.

The previous prime is 34684987. The next prime is 34684997. The reversal of 34684991 is 19948643.

It is not a de Polignac number, because 34684991 - 2² = 34684987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34684997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69260 + ... + 69758.

It is an arithmetic number, because the mean of its divisors is an integer number (2430000).

Almost surely, 2^34684991 is an apocalyptic number.

34684991 is a deficient number, since it is larger than the sum of its proper divisors (4195009).

34684991 is a wasteful number, since it uses less digits than its factorization.

34684991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670.

The product of its digits is 186624, while the sum is 44.

The square root of 34684991 is about 5889.3964886056. The cubic root of 34684991 is about 326.1223241502.

The spelling of 34684991 in words is "thirty-four million, six hundred eighty-four thousand, nine hundred ninety-one".