61373304 has 72 divisors (see below), whose sum is σ = 171947880. Its totient is φ = 19775520.

The previous prime is 61373303. The next prime is 61373317. The reversal of 61373304 is 40337316.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61373303) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 68749 + ... + 69635.

It is an arithmetic number, because the mean of its divisors is an integer number (2388165).

Almost surely, 2^61373304 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 61373304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85973940).

61373304 is an abundant number, since it is smaller than the sum of its proper divisors (110574576).

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

61373304 is a wasteful number, since it uses less digits than its factorization.

61373304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961 (or 923 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 61373304 is about 7834.1115641788. Note that the first 3 decimals coincide. The cubic root of 61373304 is about 394.4510967924.

The spelling of 61373304 in words is "sixty-one million, three hundred seventy-three thousand, three hundred four".