61236464 has 20 divisors (see below), whose sum is σ = 119336856. Its totient is φ = 30439872.

The previous prime is 61236457. The next prime is 61236473. The reversal of 61236464 is 46463216.

61236464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61236464.

It is a congruent number.

It is an unprimeable number.

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, 8294 + ... + 13829.

Almost surely, 2^61236464 is an apocalyptic number.

It is an amenable number.

61236464 is a deficient number, since it is larger than the sum of its proper divisors (58100392).

61236464 is a wasteful number, since it uses less digits than its factorization.

61236464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22304 (or 22298 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 61236464 is about 7825.3730901472. The cubic root of 61236464 is about 394.1577181277.

The spelling of 61236464 in words is "sixty-one million, two hundred thirty-six thousand, four hundred sixty-four".