61678936 has 16 divisors (see below), whose sum is σ = 126161640. Its totient is φ = 28035840.

The previous prime is 61678931. The next prime is 61678937. The reversal of 61678936 is 63987616.

61678936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61678936² = 7608582292184192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61678931) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 350361 + ... + 350536.

Almost surely, 2^61678936 is an apocalyptic number.

It is an amenable number.

61678936 is an abundant number, since it is smaller than the sum of its proper divisors (64482704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61678936 is a wasteful number, since it uses less digits than its factorization.

61678936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700914 (or 700910 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 61678936 is about 7853.5938270323. The cubic root of 61678936 is about 395.1047865989.

The spelling of 61678936 in words is "sixty-one million, six hundred seventy-eight thousand, nine hundred thirty-six".