61966441 has 4 divisors (see below), whose sum is σ = 61986384. Its totient is φ = 61946500.

The previous prime is 61966433. The next prime is 61966451. The reversal of 61966441 is 14466916.

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 61966441 - 2³ = 61966433 is a prime.

It is a super-3 number, since 3×61966441³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61966441.

It is not an unprimeable number, because it can be changed into a prime (61966451) 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, 4195 + ... + 11896.

It is an arithmetic number, because the mean of its divisors is an integer number (15496596).

Almost surely, 2^61966441 is an apocalyptic number.

It is an amenable number.

61966441 is a deficient number, since it is larger than the sum of its proper divisors (19943).

61966441 is a wasteful number, since it uses less digits than its factorization.

61966441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19942.

The product of its digits is 31104, while the sum is 37.

The square root of 61966441 is about 7871.8765869391. The cubic root of 61966441 is about 395.7177379270.

The spelling of 61966441 in words is "sixty-one million, nine hundred sixty-six thousand, four hundred forty-one".