61667036 has 12 divisors (see below), whose sum is σ = 109746840. Its totient is φ = 30310800.

The previous prime is 61667033. The next prime is 61667051. The reversal of 61667036 is 63076616.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 61666987 and 61667005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61667033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130415 + ... + 130886.

It is an arithmetic number, because the mean of its divisors is an integer number (9145570).

Almost surely, 2^61667036 is an apocalyptic number.

It is an amenable number.

61667036 is a deficient number, since it is larger than the sum of its proper divisors (48079804).

61667036 is a wasteful number, since it uses less digits than its factorization.

61667036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261364 (or 261362 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 61667036 is about 7852.8361755483. The cubic root of 61667036 is about 395.0793751717.

The spelling of 61667036 in words is "sixty-one million, six hundred sixty-seven thousand, thirty-six".