61607233 has 2 divisors, whose sum is σ = 61607234. Its totient is φ = 61607232.

The previous prime is 61607209. The next prime is 61607239. The reversal of 61607233 is 33270616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61591104 + 16129 = 7848^2 + 127^2 .

It is a cyclic number.

It is not a de Polignac number, because 61607233 - 2¹⁷ = 61476161 is a prime.

It is not a weakly prime, because it can be changed into another prime (61607239) 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, 30803616 + 30803617.

It is an arithmetic number, because the mean of its divisors is an integer number (30803617).

Almost surely, 2^61607233 is an apocalyptic number.

It is an amenable number.

61607233 is a deficient number, since it is larger than the sum of its proper divisors (1).

61607233 is an equidigital number, since it uses as much as digits as its factorization.

61607233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 61607233 is about 7849.0275193810. The cubic root of 61607233 is about 394.9516214851.

Adding to 61607233 its reverse (33270616), we get a palindrome (94877849).

The spelling of 61607233 in words is "sixty-one million, six hundred seven thousand, two hundred thirty-three".