61312793 has 2 divisors, whose sum is σ = 61312794. Its totient is φ = 61312792.

The previous prime is 61312763. The next prime is 61312817. The reversal of 61312793 is 39721316.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60715264 + 597529 = 7792^2 + 773^2 .

It is a cyclic number.

It is not a de Polignac number, because 61312793 - 2⁶ = 61312729 is a prime.

It is a super-4 number, since 4×61312793⁴ (a number of 32 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (61312703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30656396 + 30656397.

It is an arithmetic number, because the mean of its divisors is an integer number (30656397).

Almost surely, 2^61312793 is an apocalyptic number.

It is an amenable number.

61312793 is a deficient number, since it is larger than the sum of its proper divisors (1).

61312793 is an equidigital number, since it uses as much as digits as its factorization.

61312793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 32.

The square root of 61312793 is about 7830.2485912007. The cubic root of 61312793 is about 394.3214178306.

The spelling of 61312793 in words is "sixty-one million, three hundred twelve thousand, seven hundred ninety-three".