61086996 has 18 divisors (see below), whose sum is σ = 154414442. Its totient is φ = 20362320.

The previous prime is 61086983. The next prime is 61086997. The reversal of 61086996 is 69968016.

It can be written as a sum of positive squares in only one way, i.e., 59907600 + 1179396 = 7740^2 + 1086^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61086997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 848395 + ... + 848466.

Almost surely, 2^61086996 is an apocalyptic number.

It is an amenable number.

61086996 is an abundant number, since it is smaller than the sum of its proper divisors (93327446).

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

61086996 is a wasteful number, since it uses less digits than its factorization.

61086996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696871 (or 1696866 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 61086996 is about 7815.8170398238. The cubic root of 61086996 is about 393.8367657620.

The spelling of 61086996 in words is "sixty-one million, eighty-six thousand, nine hundred ninety-six".