61409963 has 8 divisors (see below), whose sum is σ = 62256768. Its totient is φ = 60568704.

The previous prime is 61409951. The next prime is 61409969. The reversal of 61409963 is 36990416.

61409963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61409963 - 2²⁰ = 60361387 is a prime.

It is a super-2 number, since 2×61409963² = 7542367111322738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61409969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23981 + ... + 26417.

It is an arithmetic number, because the mean of its divisors is an integer number (7782096).

Almost surely, 2^61409963 is an apocalyptic number.

61409963 is a deficient number, since it is larger than the sum of its proper divisors (846805).

61409963 is a wasteful number, since it uses less digits than its factorization.

61409963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 61409963 is about 7836.4509186238. The cubic root of 61409963 is about 394.5296179284.

The spelling of 61409963 in words is "sixty-one million, four hundred nine thousand, nine hundred sixty-three".