61863546 has 8 divisors (see below), whose sum is σ = 123727104. Its totient is φ = 20621180.

The previous prime is 61863533. The next prime is 61863559. The reversal of 61863546 is 64536816.

It is an interprime number because it is at equal distance from previous prime (61863533) and next prime (61863559).

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

61863546 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5155290 + ... + 5155301.

It is an arithmetic number, because the mean of its divisors is an integer number (15465888).

Almost surely, 2^61863546 is an apocalyptic number.

61863546 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61863546 is a wasteful number, since it uses less digits than its factorization.

61863546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10310596.

The product of its digits is 103680, while the sum is 39.

The square root of 61863546 is about 7865.3382635459. The cubic root of 61863546 is about 395.4985874008.

The spelling of 61863546 in words is "sixty-one million, eight hundred sixty-three thousand, five hundred forty-six".