61847913 has 8 divisors (see below), whose sum is σ = 82733728. Its totient is φ = 41097024.

The previous prime is 61847909. The next prime is 61847917. The reversal of 61847913 is 31974816.

It is an interprime number because it is at equal distance from previous prime (61847909) and next prime (61847917).

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

It is not a de Polignac number, because 61847913 - 2² = 61847909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61847917) 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 7 ways as a sum of consecutive naturals, for example, 32656 + ... + 34497.

It is an arithmetic number, because the mean of its divisors is an integer number (10341716).

Almost surely, 2^61847913 is an apocalyptic number.

It is an amenable number.

61847913 is a deficient number, since it is larger than the sum of its proper divisors (20885815).

61847913 is a wasteful number, since it uses less digits than its factorization.

61847913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67463.

The product of its digits is 36288, while the sum is 39.

The square root of 61847913 is about 7864.3444100573. The cubic root of 61847913 is about 395.4652702553.

The spelling of 61847913 in words is "sixty-one million, eight hundred forty-seven thousand, nine hundred thirteen".