61857368 has 8 divisors (see below), whose sum is σ = 115982580. Its totient is φ = 30928680.

The previous prime is 61857329. The next prime is 61857421. The reversal of 61857368 is 86375816.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3866078 + ... + 3866093.

Almost surely, 2^61857368 is an apocalyptic number.

It is an amenable number.

61857368 is a deficient number, since it is larger than the sum of its proper divisors (54125212).

61857368 is a wasteful number, since it uses less digits than its factorization.

61857368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7732177 (or 7732173 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 61857368 is about 7864.9455179295. The cubic root of 61857368 is about 395.4854214801.

The spelling of 61857368 in words is "sixty-one million, eight hundred fifty-seven thousand, three hundred sixty-eight".