61794731 has 2 divisors, whose sum is σ = 61794732. Its totient is φ = 61794730.

The previous prime is 61794727. The next prime is 61794757. The reversal of 61794731 is 13749716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61794731 - 2² = 61794727 is a prime.

It is a super-2 number, since 2×61794731² = 7637177558724722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61794791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30897365 + 30897366.

It is an arithmetic number, because the mean of its divisors is an integer number (30897366).

Almost surely, 2^61794731 is an apocalyptic number.

61794731 is a deficient number, since it is larger than the sum of its proper divisors (1).

61794731 is an equidigital number, since it uses as much as digits as its factorization.

61794731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 38.

The square root of 61794731 is about 7860.9624728782. The cubic root of 61794731 is about 395.3518863963.

The spelling of 61794731 in words is "sixty-one million, seven hundred ninety-four thousand, seven hundred thirty-one".