61434805 has 8 divisors (see below), whose sum is σ = 73835352. Its totient is φ = 49072128.

The previous prime is 61434767. The next prime is 61434827. The reversal of 61434805 is 50843416.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1077444 + 60357361 = 1038^2 + 7769^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 61434805 - 2¹³ = 61426613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5764 + ... + 12493.

It is an arithmetic number, because the mean of its divisors is an integer number (9229419).

Almost surely, 2^61434805 is an apocalyptic number.

It is an amenable number.

61434805 is a deficient number, since it is larger than the sum of its proper divisors (12400547).

61434805 is a wasteful number, since it uses less digits than its factorization.

61434805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18935.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 61434805 is about 7838.0357871089. The cubic root of 61434805 is about 394.5828100762.

The spelling of 61434805 in words is "sixty-one million, four hundred thirty-four thousand, eight hundred five".