61630036 has 24 divisors (see below), whose sum is σ = 116904200. Its totient is φ = 28259712.

The previous prime is 61630021. The next prime is 61630109. The reversal of 61630036 is 63003616.

61630036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4536900 + 57093136 = 2130^2 + 7556^2 .

It is a super-2 number, since 2×61630036² = 7596522674722592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4390 + ... + 11938.

Almost surely, 2^61630036 is an apocalyptic number.

It is an amenable number.

61630036 is a deficient number, since it is larger than the sum of its proper divisors (55274164).

61630036 is a wasteful number, since it uses less digits than its factorization.

61630036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7723 (or 7721 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 61630036 is about 7850.4799853257. The cubic root of 61630036 is about 395.0003439617. Note that the first 3 decimals are identical.

The spelling of 61630036 in words is "sixty-one million, six hundred thirty thousand, thirty-six".