61487330 has 16 divisors (see below), whose sum is σ = 111819960. Its totient is φ = 24340992.

The previous prime is 61487311. The next prime is 61487333. The reversal of 61487330 is 3378416.

61487330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 55071241 + 6416089 = 7421^2 + 2533^2 .

It is not an unprimeable number, because it can be changed into a prime (61487333) 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 7 ways as a sum of consecutive naturals, for example, 30725 + ... + 32664.

Almost surely, 2^61487330 is an apocalyptic number.

61487330 is a deficient number, since it is larger than the sum of its proper divisors (50332630).

61487330 is a wasteful number, since it uses less digits than its factorization.

61487330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63493.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 61487330 is about 7841.3857193738. The cubic root of 61487330 is about 394.6952303801.

The spelling of 61487330 in words is "sixty-one million, four hundred eighty-seven thousand, three hundred thirty".