61477073 has 4 divisors (see below), whose sum is σ = 70259520. Its totient is φ = 52694628.

The previous prime is 61477051. The next prime is 61477079. The reversal of 61477073 is 37077416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61477073 - 2¹⁰ = 61476049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61477079) 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 3 ways as a sum of consecutive naturals, for example, 4391213 + ... + 4391226.

It is an arithmetic number, because the mean of its divisors is an integer number (17564880).

Almost surely, 2^61477073 is an apocalyptic number.

It is an amenable number.

61477073 is a deficient number, since it is larger than the sum of its proper divisors (8782447).

61477073 is an equidigital number, since it uses as much as digits as its factorization.

61477073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8782446.

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 61477073 is about 7840.7316622876. The cubic root of 61477073 is about 394.6732821505.

The spelling of 61477073 in words is "sixty-one million, four hundred seventy-seven thousand, seventy-three".