61967393 has 8 divisors (see below), whose sum is σ = 62466600. Its totient is φ = 61470720.

The previous prime is 61967387. The next prime is 61967443. The reversal of 61967393 is 39376916.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18037009 + 43930384 = 4247^2 + 6628^2 .

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 61967393 - 2⁴ = 61967377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61967093) 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, 96353 + ... + 96993.

It is an arithmetic number, because the mean of its divisors is an integer number (7808325).

Almost surely, 2^61967393 is an apocalyptic number.

It is an amenable number.

61967393 is a deficient number, since it is larger than the sum of its proper divisors (499207).

61967393 is a wasteful number, since it uses less digits than its factorization.

61967393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267.

The product of its digits is 183708, while the sum is 44.

The square root of 61967393 is about 7871.9370551345. The cubic root of 61967393 is about 395.7197644076.

The spelling of 61967393 in words is "sixty-one million, nine hundred sixty-seven thousand, three hundred ninety-three".