61464479 has 4 divisors (see below), whose sum is σ = 61607520. Its totient is φ = 61321440.

The previous prime is 61464463. The next prime is 61464493. The reversal of 61464479 is 97446416.

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 61464479 - 2⁴ = 61464463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61464409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70874 + ... + 71735.

It is an arithmetic number, because the mean of its divisors is an integer number (15401880).

Almost surely, 2^61464479 is an apocalyptic number.

61464479 is a deficient number, since it is larger than the sum of its proper divisors (143041).

61464479 is a wasteful number, since it uses less digits than its factorization.

61464479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143040.

The product of its digits is 145152, while the sum is 41.

The square root of 61464479 is about 7839.9285073271. The cubic root of 61464479 is about 394.6463298004.

The spelling of 61464479 in words is "sixty-one million, four hundred sixty-four thousand, four hundred seventy-nine".