61473490 has 32 divisors (see below), whose sum is σ = 120347136. Its totient is φ = 22472640.

The previous prime is 61473487. The next prime is 61473521. The reversal of 61473490 is 9437416.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11095 + ... + 15685.

It is an arithmetic number, because the mean of its divisors is an integer number (3760848).

Almost surely, 2^61473490 is an apocalyptic number.

61473490 is a deficient number, since it is larger than the sum of its proper divisors (58873646).

61473490 is a wasteful number, since it uses less digits than its factorization.

61473490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4714.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 61473490 is about 7840.5031726287. The cubic root of 61473490 is about 394.6656145666.

The spelling of 61473490 in words is "sixty-one million, four hundred seventy-three thousand, four hundred ninety".