61434609 has 8 divisors (see below), whose sum is σ = 82015872. Its totient is φ = 40904880.

The previous prime is 61434601. The next prime is 61434613. The reversal of 61434609 is 90643416.

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

It is not a de Polignac number, because 61434609 - 2³ = 61434601 is a prime.

It is a super-2 number, since 2×61434609² = 7548422365965762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61434609.

It is not an unprimeable number, because it can be changed into a prime (61434601) 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, 10009 + ... + 14934.

It is an arithmetic number, because the mean of its divisors is an integer number (10251984).

Almost surely, 2^61434609 is an apocalyptic number.

It is an amenable number.

61434609 is a deficient number, since it is larger than the sum of its proper divisors (20581263).

61434609 is a wasteful number, since it uses less digits than its factorization.

61434609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25767.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 61434609 is about 7838.0232839664. The cubic root of 61434609 is about 394.5823904535.

The spelling of 61434609 in words is "sixty-one million, four hundred thirty-four thousand, six hundred nine".