61003900 has 36 divisors (see below), whose sum is σ = 135616320. Its totient is φ = 23804800.

The previous prime is 61003897. The next prime is 61003909. The reversal of 61003900 is 930016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61003909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3340 + ... + 11539.

It is an arithmetic number, because the mean of its divisors is an integer number (3767120).

Almost surely, 2^61003900 is an apocalyptic number.

It is an amenable number.

61003900 is an abundant number, since it is smaller than the sum of its proper divisors (74612420).

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

61003900 is a wasteful number, since it uses less digits than its factorization.

61003900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14934 (or 14927 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 61003900 is about 7810.4993438320. The cubic root of 61003900 is about 393.6581073877.

Adding to 61003900 its reverse (930016), we get a palindrome (61933916).

It can be divided in two parts, 6100 and 3900, that added together give a 4-th power (10000 = 10⁴).

The spelling of 61003900 in words is "sixty-one million, three thousand, nine hundred".