61919411 has 4 divisors (see below), whose sum is σ = 62665512. Its totient is φ = 61173312.

The previous prime is 61919393. The next prime is 61919449. The reversal of 61919411 is 11491916.

61919411 is nontrivially palindromic in base 16.

61919411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61919411 - 2¹⁰ = 61918387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61916411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372926 + ... + 373091.

It is an arithmetic number, because the mean of its divisors is an integer number (15666378).

Almost surely, 2^61919411 is an apocalyptic number.

61919411 is a deficient number, since it is larger than the sum of its proper divisors (746101).

61919411 is an equidigital number, since it uses as much as digits as its factorization.

61919411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746100.

The product of its digits is 1944, while the sum is 32.

The square root of 61919411 is about 7868.8888033826. Note that the first 4 decimals coincide. The cubic root of 61919411 is about 395.6176013847.

The spelling of 61919411 in words is "sixty-one million, nine hundred nineteen thousand, four hundred eleven".