61934489 has 4 divisors (see below), whose sum is σ = 62513424. Its totient is φ = 61355556.

The previous prime is 61934479. The next prime is 61934531. The reversal of 61934489 is 98443916.

61934489 = T₁₀₂₂ + T₁₀₂₃ + ... + T₁₁₂₈.

61934489 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61934489 is a prime.

It is a super-2 number, since 2×61934489² = 7671761855382242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61934449) 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, 289307 + ... + 289520.

It is an arithmetic number, because the mean of its divisors is an integer number (15628356).

Almost surely, 2^61934489 is an apocalyptic number.

It is an amenable number.

61934489 is a deficient number, since it is larger than the sum of its proper divisors (578935).

61934489 is a wasteful number, since it uses less digits than its factorization.

61934489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578934.

The product of its digits is 186624, while the sum is 44.

The square root of 61934489 is about 7869.8468218892. The cubic root of 61934489 is about 395.6497110682.

The spelling of 61934489 in words is "sixty-one million, nine hundred thirty-four thousand, four hundred eighty-nine".