61408634 has 8 divisors (see below), whose sum is σ = 105271968. Its totient is φ = 26317980.

The previous prime is 61408619. The next prime is 61408661. The reversal of 61408634 is 43680416.

61408634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 61408634.

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, 2193152 + ... + 2193179.

It is an arithmetic number, because the mean of its divisors is an integer number (13158996).

Almost surely, 2^61408634 is an apocalyptic number.

61408634 is a deficient number, since it is larger than the sum of its proper divisors (43863334).

61408634 is a wasteful number, since it uses less digits than its factorization.

61408634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4386340.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 61408634 is about 7836.3661221257. The cubic root of 61408634 is about 394.5267718449.

The spelling of 61408634 in words is "sixty-one million, four hundred eight thousand, six hundred thirty-four".