61971846 has 16 divisors (see below), whose sum is σ = 124089600. Its totient is φ = 20632968.

The previous prime is 61971829. The next prime is 61971881. The reversal of 61971846 is 64817916.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61971798 and 61971807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106 + ... + 11133.

It is an arithmetic number, because the mean of its divisors is an integer number (7755600).

Almost surely, 2^61971846 is an apocalyptic number.

61971846 is an abundant number, since it is smaller than the sum of its proper divisors (62117754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61971846 is a wasteful number, since it uses less digits than its factorization.

61971846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12163.

The product of its digits is 72576, while the sum is 42.

The square root of 61971846 is about 7872.2198902216. The cubic root of 61971846 is about 395.7292430372.

The spelling of 61971846 in words is "sixty-one million, nine hundred seventy-one thousand, eight hundred forty-six".