61734605 has 4 divisors (see below), whose sum is σ = 74081532. Its totient is φ = 49387680.

The previous prime is 61734601. The next prime is 61734637. The reversal of 61734605 is 50643716.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13557124 + 48177481 = 3682^2 + 6941^2 .

It is not a de Polignac number, because 61734605 - 2² = 61734601 is a prime.

It is a super-2 number, since 2×61734605² = 7622322909012050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61734601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6173456 + ... + 6173465.

It is an arithmetic number, because the mean of its divisors is an integer number (18520383).

Almost surely, 2^61734605 is an apocalyptic number.

It is an amenable number.

61734605 is a deficient number, since it is larger than the sum of its proper divisors (12346927).

61734605 is a wasteful number, since it uses less digits than its factorization.

61734605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12346926.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 61734605 is about 7857.1372012967. The cubic root of 61734605 is about 395.2236195739.

The spelling of 61734605 in words is "sixty-one million, seven hundred thirty-four thousand, six hundred five".