61043836 has 24 divisors (see below), whose sum is σ = 126027776. Its totient is φ = 25317360.

The previous prime is 61043831. The next prime is 61043837. The reversal of 61043836 is 63834016.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 61043798 and 61043807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61043831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34296 + ... + 36031.

Almost surely, 2^61043836 is an apocalyptic number.

It is an amenable number.

61043836 is an abundant number, since it is smaller than the sum of its proper divisors (64983940).

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

61043836 is a wasteful number, since it uses less digits than its factorization.

61043836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70369 (or 70367 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 61043836 is about 7813.0554842520. The cubic root of 61043836 is about 393.7439909724.

The spelling of 61043836 in words is "sixty-one million, forty-three thousand, eight hundred thirty-six".