61814744 has 16 divisors (see below), whose sum is σ = 119641920. Its totient is φ = 29910240.

The previous prime is 61814743. The next prime is 61814749. The reversal of 61814744 is 44741816.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61814741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124379 + ... + 124874.

It is an arithmetic number, because the mean of its divisors is an integer number (7477620).

Almost surely, 2^61814744 is an apocalyptic number.

It is an amenable number.

61814744 is a deficient number, since it is larger than the sum of its proper divisors (57827176).

61814744 is a wasteful number, since it uses less digits than its factorization.

61814744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249290 (or 249286 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 61814744 is about 7862.2353055604. The cubic root of 61814744 is about 395.3945616815.

The spelling of 61814744 in words is "sixty-one million, eight hundred fourteen thousand, seven hundred forty-four".