61477723 has 2 divisors, whose sum is σ = 61477724. Its totient is φ = 61477722.

The previous prime is 61477697. The next prime is 61477747. The reversal of 61477723 is 32777416.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61477723 - 2²¹ = 59380571 is a prime.

It is a super-3 number, since 3×61477723³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (61477783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30738861 + 30738862.

It is an arithmetic number, because the mean of its divisors is an integer number (30738862).

Almost surely, 2^61477723 is an apocalyptic number.

61477723 is a deficient number, since it is larger than the sum of its proper divisors (1).

61477723 is an equidigital number, since it uses as much as digits as its factorization.

61477723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49392, while the sum is 37.

The square root of 61477723 is about 7840.7731123914. The cubic root of 61477723 is about 394.6746731120.

The spelling of 61477723 in words is "sixty-one million, four hundred seventy-seven thousand, seven hundred twenty-three".