61946671 has 4 divisors (see below), whose sum is σ = 61964200. Its totient is φ = 61929144.

The previous prime is 61946641. The next prime is 61946681. The reversal of 61946671 is 17664916.

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 61946671 - 2⁷ = 61946543 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 (61946641) 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, 1401 + ... + 11218.

It is an arithmetic number, because the mean of its divisors is an integer number (15491050).

Almost surely, 2^61946671 is an apocalyptic number.

61946671 is a deficient number, since it is larger than the sum of its proper divisors (17529).

61946671 is a wasteful number, since it uses less digits than its factorization.

61946671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17528.

The product of its digits is 54432, while the sum is 40.

The square root of 61946671 is about 7870.6207506143. The cubic root of 61946671 is about 395.6756497059.

The spelling of 61946671 in words is "sixty-one million, nine hundred forty-six thousand, six hundred seventy-one".