61940417 has 16 divisors (see below), whose sum is σ = 78029952. Its totient is φ = 47761920.

The previous prime is 61940377. The next prime is 61940419. The reversal of 61940417 is 71404916.

It is a cyclic number.

It is not a de Polignac number, because 61940417 - 2⁶ = 61940353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61940419) 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 15 ways as a sum of consecutive naturals, for example, 3323 + ... + 11615.

It is an arithmetic number, because the mean of its divisors is an integer number (4876872).

Almost surely, 2^61940417 is an apocalyptic number.

It is an amenable number.

61940417 is a deficient number, since it is larger than the sum of its proper divisors (16089535).

61940417 is a wasteful number, since it uses less digits than its factorization.

61940417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8408.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 61940417 is about 7870.2234402843. The cubic root of 61940417 is about 395.6623337426.

The spelling of 61940417 in words is "sixty-one million, nine hundred forty thousand, four hundred seventeen".