61363688 has 8 divisors (see below), whose sum is σ = 115056930. Its totient is φ = 30681840.

The previous prime is 61363669. The next prime is 61363691. The reversal of 61363688 is 88636316.

61363688 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 only one way, i.e., 51008164 + 10355524 = 7142^2 + 3218^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×61363688² = 7531004409922688, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 3835223 + ... + 3835238.

Almost surely, 2^61363688 is an apocalyptic number.

It is an amenable number.

61363688 is a deficient number, since it is larger than the sum of its proper divisors (53693242).

61363688 is a wasteful number, since it uses less digits than its factorization.

61363688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7670467 (or 7670463 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 61363688 is about 7833.4978138760. The cubic root of 61363688 is about 394.4304947847.

The spelling of 61363688 in words is "sixty-one million, three hundred sixty-three thousand, six hundred eighty-eight".