61773030 has 96 divisors (see below), whose sum is σ = 181778688. Its totient is φ = 14968800.

The previous prime is 61773013. The next prime is 61773071. The reversal of 61773030 is 3037716.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 61772985 and 61773003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25575 + ... + 27885.

It is an arithmetic number, because the mean of its divisors is an integer number (1893528).

Almost surely, 2^61773030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61773030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90889344).

61773030 is an abundant number, since it is smaller than the sum of its proper divisors (120005658).

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

61773030 is a wasteful number, since it uses less digits than its factorization.

61773030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344 (or 2332 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 27.

The square root of 61773030 is about 7859.5820499566. The cubic root of 61773030 is about 395.3056012430.

The spelling of 61773030 in words is "sixty-one million, seven hundred seventy-three thousand, thirty".