61064633 has 20 divisors (see below), whose sum is σ = 73778340. Its totient is φ = 50478624.

The previous prime is 61064617. The next prime is 61064657. The reversal of 61064633 is 33646016.

It can be written as a sum of positive squares in 2 ways, for example, as 42471289 + 18593344 = 6517^2 + 4312^2 .

It is not a de Polignac number, because 61064633 - 2⁴ = 61064617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61064596 and 61064605.

It is not an unprimeable number, because it can be changed into a prime (61064693) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 69191 + ... + 70067.

It is an arithmetic number, because the mean of its divisors is an integer number (3688917).

Almost surely, 2^61064633 is an apocalyptic number.

It is an amenable number.

61064633 is a deficient number, since it is larger than the sum of its proper divisors (12713707).

61064633 is an frugal number, since it uses more digits than its factorization.

61064633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 61064633 is about 7814.3862842836. The cubic root of 61064633 is about 393.7887007228.

The spelling of 61064633 in words is "sixty-one million, sixty-four thousand, six hundred thirty-three".