61302863 has 4 divisors (see below), whose sum is σ = 61413480. Its totient is φ = 61192248.

The previous prime is 61302847. The next prime is 61302869. The reversal of 61302863 is 36820316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61302863 - 2⁴ = 61302847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61302869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54473 + ... + 55586.

It is an arithmetic number, because the mean of its divisors is an integer number (15353370).

Almost surely, 2^61302863 is an apocalyptic number.

61302863 is a deficient number, since it is larger than the sum of its proper divisors (110617).

61302863 is a wasteful number, since it uses less digits than its factorization.

61302863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110616.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 61302863 is about 7829.6144860395. The cubic root of 61302863 is about 394.3001290539.

The spelling of 61302863 in words is "sixty-one million, three hundred two thousand, eight hundred sixty-three".