61828258 has 16 divisors (see below), whose sum is σ = 96817464. Its totient is φ = 29583360.

The previous prime is 61828213. The next prime is 61828259. The reversal of 61828258 is 85282816.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31169889 + 30658369 = 5583^2 + 5537^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61828258.

It is not an unprimeable number, because it can be changed into a prime (61828259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2335 + ... + 11362.

Almost surely, 2^61828258 is an apocalyptic number.

61828258 is a deficient number, since it is larger than the sum of its proper divisors (34989206).

61828258 is a wasteful number, since it uses less digits than its factorization.

61828258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13797.

The product of its digits is 61440, while the sum is 40.

The square root of 61828258 is about 7863.0946833928. The cubic root of 61828258 is about 395.4233734310.

The spelling of 61828258 in words is "sixty-one million, eight hundred twenty-eight thousand, two hundred fifty-eight".