61407473 has 2 divisors, whose sum is σ = 61407474. Its totient is φ = 61407472.

The previous prime is 61407469. The next prime is 61407503. The reversal of 61407473 is 37470416.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34492129 + 26915344 = 5873^2 + 5188^2 .

It is a cyclic number.

It is not a de Polignac number, because 61407473 - 2² = 61407469 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (61407433) 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 as a sum of consecutive naturals, namely, 30703736 + 30703737.

It is an arithmetic number, because the mean of its divisors is an integer number (30703737).

Almost surely, 2^61407473 is an apocalyptic number.

It is an amenable number.

61407473 is a deficient number, since it is larger than the sum of its proper divisors (1).

61407473 is an equidigital number, since it uses as much as digits as its factorization.

61407473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 61407473 is about 7836.2920440729. The cubic root of 61407473 is about 394.5242855036.

Adding to 61407473 its reverse (37470416), we get a palindrome (98877889).

The spelling of 61407473 in words is "sixty-one million, four hundred seven thousand, four hundred seventy-three".