34509961 has 4 divisors (see below), whose sum is σ = 34832592. Its totient is φ = 34187332.

The previous prime is 34509931. The next prime is 34509973. The reversal of 34509961 is 16990543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16990543 = 787 ⋅21589.

It is a cyclic number.

It is not a de Polignac number, because 34509961 - 2⁵ = 34509929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34509961.

It is not an unprimeable number, because it can be changed into a prime (34509901) 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, 161155 + ... + 161368.

It is an arithmetic number, because the mean of its divisors is an integer number (8708148).

Almost surely, 2^34509961 is an apocalyptic number.

It is an amenable number.

34509961 is a deficient number, since it is larger than the sum of its proper divisors (322631).

34509961 is a wasteful number, since it uses less digits than its factorization.

34509961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322630.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 34509961 is about 5874.5179376694. The cubic root of 34509961 is about 325.5728311791.

The spelling of 34509961 in words is "thirty-four million, five hundred nine thousand, nine hundred sixty-one".