61893319 has 2 divisors, whose sum is σ = 61893320. Its totient is φ = 61893318.

The previous prime is 61893289. The next prime is 61893331. The reversal of 61893319 is 91339816.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61893319 - 2⁹ = 61892807 is a prime.

It is a super-2 number, since 2×61893319² = 7661565873671522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61893619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30946659 + 30946660.

It is an arithmetic number, because the mean of its divisors is an integer number (30946660).

Almost surely, 2^61893319 is an apocalyptic number.

61893319 is a deficient number, since it is larger than the sum of its proper divisors (1).

61893319 is an equidigital number, since it uses as much as digits as its factorization.

61893319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 40.

The square root of 61893319 is about 7867.2307071803. The cubic root of 61893319 is about 395.5620242803.

The spelling of 61893319 in words is "sixty-one million, eight hundred ninety-three thousand, three hundred nineteen".