61828470 has 144 divisors (see below), whose sum is σ = 186153552. Its totient is φ = 14117760.

The previous prime is 61828469. The next prime is 61828499. The reversal of 61828470 is 7482816.

61828470 is a `hidden beast` number, since 6 + 182 + 8 + 470 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 357304 + ... + 357476.

It is an arithmetic number, because the mean of its divisors is an integer number (1292733).

Almost surely, 2^61828470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61828470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93076776).

61828470 is an abundant number, since it is smaller than the sum of its proper divisors (124325082).

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

61828470 is a wasteful number, since it uses less digits than its factorization.

61828470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 61828470 is about 7863.1081640786. The cubic root of 61828470 is about 395.4238253800.

The spelling of 61828470 in words is "sixty-one million, eight hundred twenty-eight thousand, four hundred seventy".