34536991 has 4 divisors (see below), whose sum is σ = 34551792. Its totient is φ = 34522192.

The previous prime is 34536989. The next prime is 34537001. The reversal of 34536991 is 19963543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19963543 = 337 ⋅59239.

It is a cyclic number.

It is not a de Polignac number, because 34536991 - 2¹ = 34536989 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34536191) 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, 3046 + ... + 8851.

It is an arithmetic number, because the mean of its divisors is an integer number (8637948).

Almost surely, 2^34536991 is an apocalyptic number.

34536991 is a deficient number, since it is larger than the sum of its proper divisors (14801).

34536991 is a wasteful number, since it uses less digits than its factorization.

34536991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14800.

The product of its digits is 87480, while the sum is 40.

The square root of 34536991 is about 5876.8181016601. The cubic root of 34536991 is about 325.6578108658.

The spelling of 34536991 in words is "thirty-four million, five hundred thirty-six thousand, nine hundred ninety-one".