61464821 has 8 divisors (see below), whose sum is σ = 67355904. Its totient is φ = 55624320.

The previous prime is 61464817. The next prime is 61464859. The reversal of 61464821 is 12846416.

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 61464821 - 2² = 61464817 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61464811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10076 + ... + 14981.

It is an arithmetic number, because the mean of its divisors is an integer number (8419488).

Almost surely, 2^61464821 is an apocalyptic number.

It is an amenable number.

61464821 is a deficient number, since it is larger than the sum of its proper divisors (5891083).

61464821 is a wasteful number, since it uses less digits than its factorization.

61464821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25291.

The product of its digits is 9216, while the sum is 32.

The square root of 61464821 is about 7839.9503187201. The cubic root of 61464821 is about 394.6470617614.

The spelling of 61464821 in words is "sixty-one million, four hundred sixty-four thousand, eight hundred twenty-one".