61436036 has 24 divisors (see below), whose sum is σ = 116061120. Its totient is φ = 28368032.

The previous prime is 61435993. The next prime is 61436041. The reversal of 61436036 is 63063416.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8846 + ... + 14181.

It is an arithmetic number, because the mean of its divisors is an integer number (4835880).

Almost surely, 2^61436036 is an apocalyptic number.

It is an amenable number.

61436036 is a deficient number, since it is larger than the sum of its proper divisors (54625084).

61436036 is a wasteful number, since it uses less digits than its factorization.

61436036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23083 (or 23081 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 61436036 is about 7838.1143140426. The cubic root of 61436036 is about 394.5854455431.

The spelling of 61436036 in words is "sixty-one million, four hundred thirty-six thousand, thirty-six".