61416871 has 4 divisors (see below), whose sum is σ = 62258272. Its totient is φ = 60575472.

The previous prime is 61416863. The next prime is 61416881. The reversal of 61416871 is 17861416.

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 61416871 - 2³ = 61416863 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 (61416881) 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, 420591 + ... + 420736.

It is an arithmetic number, because the mean of its divisors is an integer number (15564568).

Almost surely, 2^61416871 is an apocalyptic number.

61416871 is a deficient number, since it is larger than the sum of its proper divisors (841401).

61416871 is an equidigital number, since it uses as much as digits as its factorization.

61416871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841400.

The product of its digits is 8064, while the sum is 34.

The square root of 61416871 is about 7836.8916669812. The cubic root of 61416871 is about 394.5444109048.

The spelling of 61416871 in words is "sixty-one million, four hundred sixteen thousand, eight hundred seventy-one".