61895930 has 8 divisors (see below), whose sum is σ = 111412692. Its totient is φ = 24758368.

The previous prime is 61895917. The next prime is 61895959. The reversal of 61895930 is 3959816.

It can be written as a sum of positive squares in 2 ways, for example, as 61889689 + 6241 = 7867^2 + 79^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×61895930² = 7662212301129800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3094787 + ... + 3094806.

Almost surely, 2^61895930 is an apocalyptic number.

61895930 is a deficient number, since it is larger than the sum of its proper divisors (49516762).

61895930 is a wasteful number, since it uses less digits than its factorization.

61895930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6189600.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 61895930 is about 7867.3966469220. The cubic root of 61895930 is about 395.5675865280.

The spelling of 61895930 in words is "sixty-one million, eight hundred ninety-five thousand, nine hundred thirty".