61434811 has 4 divisors (see below), whose sum is σ = 61486672. Its totient is φ = 61382952.

The previous prime is 61434767. The next prime is 61434827. The reversal of 61434811 is 11843416.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61434811 - 2¹⁵ = 61402043 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 61434811.

It is not an unprimeable number, because it can be changed into a prime (61434881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24111 + ... + 26536.

It is an arithmetic number, because the mean of its divisors is an integer number (15371668).

Almost surely, 2^61434811 is an apocalyptic number.

61434811 is a deficient number, since it is larger than the sum of its proper divisors (51861).

61434811 is a wasteful number, since it uses less digits than its factorization.

61434811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51860.

The product of its digits is 2304, while the sum is 28.

The square root of 61434811 is about 7838.0361698579. The cubic root of 61434811 is about 394.5828229217.

The spelling of 61434811 in words is "sixty-one million, four hundred thirty-four thousand, eight hundred eleven".