61411657 has 8 divisors (see below), whose sum is σ = 63055872. Its totient is φ = 59781600.

The previous prime is 61411631. The next prime is 61411661. The reversal of 61411657 is 75611416.

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

It is a cyclic number.

It is not a de Polignac number, because 61411657 - 2¹⁹ = 60887369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61414657) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5557 + ... + 12397.

It is an arithmetic number, because the mean of its divisors is an integer number (7881984).

Almost surely, 2^61411657 is an apocalyptic number.

It is an amenable number.

61411657 is a deficient number, since it is larger than the sum of its proper divisors (1644215).

61411657 is a wasteful number, since it uses less digits than its factorization.

61411657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7079.

The product of its digits is 5040, while the sum is 31.

The square root of 61411657 is about 7836.5590025215. The cubic root of 61411657 is about 394.5332456080.

The spelling of 61411657 in words is "sixty-one million, four hundred eleven thousand, six hundred fifty-seven".