61766417 has 4 divisors (see below), whose sum is σ = 61856496. Its totient is φ = 61676340.

The previous prime is 61766407. The next prime is 61766437. The reversal of 61766417 is 71466716.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61766417 - 2²⁴ = 44989201 is a prime.

It is a super-3 number, since 3×61766417³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61766407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44003 + ... + 45384.

It is an arithmetic number, because the mean of its divisors is an integer number (15464124).

Almost surely, 2^61766417 is an apocalyptic number.

It is an amenable number.

61766417 is a deficient number, since it is larger than the sum of its proper divisors (90079).

61766417 is an equidigital number, since it uses as much as digits as its factorization.

61766417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90078.

The product of its digits is 42336, while the sum is 38.

The square root of 61766417 is about 7859.1613420263. The cubic root of 61766417 is about 395.2914944975.

The spelling of 61766417 in words is "sixty-one million, seven hundred sixty-six thousand, four hundred seventeen".