61463885 has 16 divisors (see below), whose sum is σ = 86016000. Its totient is φ = 42145488.

The previous prime is 61463881. The next prime is 61463887. The reversal of 61463885 is 58836416.

It is not a de Polignac number, because 61463885 - 2² = 61463881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61463881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16205 + ... + 19634.

It is an arithmetic number, because the mean of its divisors is an integer number (5376000).

Almost surely, 2^61463885 is an apocalyptic number.

It is an amenable number.

61463885 is a deficient number, since it is larger than the sum of its proper divisors (24552115).

61463885 is an equidigital number, since it uses as much as digits as its factorization.

61463885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35865 (or 35851 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 61463885 is about 7839.8906242370. The cubic root of 61463885 is about 394.6450584934.

The spelling of 61463885 in words is "sixty-one million, four hundred sixty-three thousand, eight hundred eighty-five".