61797204 has 72 divisors (see below), whose sum is σ = 179419968. Its totient is φ = 17568000.

The previous prime is 61797199. The next prime is 61797221. The reversal of 61797204 is 40279716.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62764 + ... + 63740.

It is an arithmetic number, because the mean of its divisors is an integer number (2491944).

Almost surely, 2^61797204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61797204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89709984).

61797204 is an abundant number, since it is smaller than the sum of its proper divisors (117622764).

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

61797204 is a wasteful number, since it uses less digits than its factorization.

61797204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 61797204 is about 7861.1197675649. The cubic root of 61797204 is about 395.3571602665.

It can be divided in two parts, 61797 and 204, that added together give a square (62001 = 249²).

The spelling of 61797204 in words is "sixty-one million, seven hundred ninety-seven thousand, two hundred four".